Ian’s Bird of the Moment – Christmas Island Birds

Ian’s Bird of the Incident he’s called it this time in his newsletter. By Ian Montgomery
Well, I’ve finally emerged from various Christmas Island induced rabbit holes and we can have our virtual trip to look at some of the special birds of this remote island. There aren’t any feral rabbits on Christmas Island, so Red Crab burrows might be a better metaphor.
Christmas Island is both remote and very old, making it an interesting place in terms of both biogeography and avian evolution. It is about 350km/220 miles south of the western tip of Java and 1,550km/960 miles northwest of Exmouth in Western Australia. There are no nearby islands – the Cocos Keeling Islands are 980km/610 miles to its west. It first appeared about 60 million years ago as a 5,000m/ high volcanic seamount which then underwent several geological uplifts over the following 10 million years giving it a layered structure with cliffs, both coastal and farther inland, formed by coastal erosion. Coral reefs deposited limestone over the basalt core.
christmas_island_map.jpg
60 million years ago was shortly, geologically speaking, after the extinction event, thought to be a global collision with a large object, about 66 million years ago that marked the end of the Cretaceous period. This caused the extinction of many plants and animals, notably the dinosaurs, and resulted in rapid adaptive radiation of many surviving groups, particularly birds and mammals. At the time Australia was still attached to Antarctica and the other tectonic plates of the former Gondwana were still drifting to their current locations and resulting land masses: South America, Africa, Madagascar and India.
The island has an area of 135 sq km/52 sq mi and the coast is an almost continuous cliff with few bays or beaches, as shown in the photo of the east coast. Although known to European sailors from the 17th century, the cliffs made landing, exploration and settlement difficult and it remained uninhabited and consequently undisturbed until the late 19th Century. The largest bay is Flyingfish Cove near the north of the island where the Settlement is located. The photo below shows a typical stretch of coast looking south from Margaret’s Knoll on the eastern side of the island.
margarets_knoll-ps.jpg
You’ll probably know from previous posts that I’m particularly interested in the evolution and ecology of birds, and by extension their taxonomy and biogeography. Isolated islands both provide fascinating insights into and pose intriguing questions about both evolution and biogeography and I’m going to look at the species on Christmas Island from these angles. We’ll start with the taxonomically most unusual, Abbott’s Booby, which belongs to a monotypic endemic genus, then look at other interesting seabirds and finish with land birds.
abbotts_booby_40307_pp.jpg
Three of the seven global species of Booby breed on Christmas Island: Abbott’s, Brown and Red-footed. Both the Brown and Red-footed are widespread, found throughout tropical waters around the world and members of the genus Sula which comprises all the species of Booby except Abbott’s.  Abbott’s, however, breeds only on Christmas Island and is the only member of the genus Papasula. It was originally included in Sula but structural differences between it and both Gannets and other Boobies led Olson and Warheit 1988 to move it to a new more primitive genus of its own. Subsequent DNA studies have confirmed this and Papasula is thought to have branched off the early Gannet-Booby lineage about 22 million years ago.
abbotts_boby_39566_pp.jpg
We can’t, however, conclude that it evolved in isolation on Christmas Island. The species was first described from a specimen collected by the American naturalist William Louis Abbott in 1892 on an island near Madagascar in the western Indian Ocean, either Assumption Island or the nearby Glorioso Island. Fossil evidence indicates that it was quite widespread in the Indian and Pacific Oceans and there are eyewitness reports of it breeding in the Mascarene Islands near Mauritius (as described in Wikipedia). So its endemic status on Christmas Island is a result of its extinction elsewhere. On Christmas Island the population, currently estimated at about 2,000 pairs, has declined owing to habitat clearance and the species is classified as endangered.
red_footed_booby_40375_pp.jpg
Here, by way of comparison, is the white morph of the Red-footed Booby. There is also a widespread brown morph of this species but all, or almost all of the ones on Christmas Island are of the white morph. You can see photos of the brown or dark morph here: Birdway Red-footed Booby.
Frigatebirds are very well represented on Christmas Island. Three of the five global species nest on the island: Lesser, Great and the endemic Christmas (Island) Frigatebird. The other two species are the Magnificent (Birdway: Magnificent Frigatebird) of Atlantic and eastern Pacific Oceans and the Ascension, endemic to Ascension Island in the Atlantic. The Lesser (Birdway: Lesser Frigatebird) has colonised Christmas Island in small numbers relatively recently while the Great (Birdway: Great Frigatebird) is an endemic subspecies (listeri) with a population of about 3,300 pairs.. The Christmas Frigatebird is globally the rarest with a population of about 1,200 pairs. The population has declined since human settlement and the species is now classified as critically endangered, both because of its small, declining population and the fact that its breeding range is limited to a single location.
Unlike Abbott’s Booby, it’s probably fairly safe to assume that it evolved on the island and differs from the other species of Frigatebird mainly in the patterning of the plumage. The male has a diagnostic white belly, while the female has a white breast and belly extending further down the belly than in other species.
chris_is_frigatebird_40587_pp.jpg
Frigatebirds feed both by snatching prey such as squid and flying fish from on or near the surface of the water and by harrying Boobies, Tropicbirds and Terns until they drop their food. In the photo above, this female has just regurgitated a no doubt tasty mixture for its chick including a flying fish, the “wings” of which you can see sticking out on both sides of the chick’s mouth.
While we’re on the subject of tropical seabirds, Christmas Island has two of the three global species of Tropicbirds: the White-tailed and Red-tailed Tropicbird. Most of the local White-tailed Tropicbird population has black and apricot rather than the typical black and white plumage and has been ascribed to a separate subspecies fulvus. It is known locally as the Golden Bosunbird. However, 7% of the local population has the normal black and white plumage and apricot coloured birds occur in small numbers elsewhere, so it may be better to consider the differences just as colour morphs.
whitetail_tropicbird_39817_pp.jpg
For me, the Golden Bosunbird was the most beautiful bird on the island and I spent hours watching them in flight from this lookout near the settlement overlooking Tai Jin House, below, the former resident of the governor in more colonial times.
tai_jin_house-ps.jpg
The Red-tailed Tropicbird, or locally Silver Bosunbird, is quite beautiful too. In pristine condition, the birds have long red tail streamers, but these frequently get broken off when the birds are nesting. They do a spectacular fluttering display flight travelling downwards and often slightly backwards near the cliffs where they nest.
redtailed_tropicbird_40016_pp.jpg
Both of these Tropicbirds are quite widespread. The White-tailed occurs in tropical parts of the Indian, Pacific and Atlantic Oceans while the Red-tailed ranges from the western Indian Ocean to the central Pacific.
Special birds on Christmas Island are not restricted to sea birds: it has some unusual land birds as well. Here is the splendid and abundant Christmas Island Imperial Pigeon.
xmas_is_imp_pigeon_40723_pp.jpg
The dorsal plumage is this lustrous green which reminds me of Connemara marble. The breast is plum-coloured, the vent rufous and the eyes are a spectacular golden. It’s endemic to the island and its closest relative is the Pink-headed Imperial Pigeon (D. rosacea), widespread in the Indonesian islands of the Java Sea.
xmas_is_imp_pigeon_40171_pp.jpg
A much more elusive member of this family is endemic race natalis of the Common or Asian Emerald Dove. This used to be treated as the same species as the Emerald Dove that occurs in Australia but the latter has been split into two species: the Common or Asian and the Pacific. As a result, Christmas Island is the only place in Australia where the Common or Asian species occurs.
common_emerald_dove_40178_pp.jpg
Also elusive is the only resident owl, the endemic Christmas Island Boobook. With a length of 26-29cm/10-11.4in, it is generally smaller than the rather variable Australian Bookbook of the mainland: 27-36cm/10.6-13.8in. We went out one night near the golf course with David James, one of the leaders of the first Christmas Island Bird Week, who was armed with a recording of the call. The recording was of poor quality but to our delight and surprise we got a response and a family of three appeared at close quarters. The species is regarded as vulnerable with a population of maybe 500 pairs and there are concerns that the introduction of yellow crazy ants is affecting the availability of the invertebrate prey that is its main source of food.
christmas_boobook_39728_pp.jpg
Christmas Island also has an endemic diurnal predator, the Christmas Island Goshawk. Its taxonomy has proved a challenge for various taxonomists and it has generally been treated as a race of the Brown Goshawk (Accipiter fasciatus). In fact there are significant differences in structure, appearance and behaviour, so there is probably justification for treating it as a separate species. It is the rarest of the endemic birds with a population of probably less than 250 individuals. Unlike the Brown Goshawk, the birds are relatively tame and approachable.
variable_goshawk_39610_pp.jpg
Christmas Island has only two endemic Passerines, the endemic race of the Island Thrush that was the subject of the last Irregular Bird and the Christmas Island White-eye. White-eyes are famous for finding their way to and settling on remote islands so there are nearly one hundred species ranging from Africa through the warmer parts of Asia to Australasia and the islands of the Pacific. This one is posing on a coral tree near Tai Jin House.
xmas_is_white_eye_39318_pp.jpg
So, there you are. Plenty of rabbit or red crab burrows to be explored by budding taxonomists and biogeographers. Talking about Red Crabs, itt wasn’t the right time of the year for the Red Crab spawning event and I don’t remember seeing any as they keep out of sight at other times of the year. We did encounter some Robber or Coconut Crabs, however. This species  is the largest terrestrial arthropod, weighing up to 4kg/8.8lbs and measuring up to 1m/39in in span from leg tip to leg tip. Their range comprises islands of the Indian Ocean and parts of the Pacific.
robber_crab_39595_pp.jpg
Greetings and stay safe,
Ian

Lee’s Addition:

“Thus the heavens and the earth were completed, and all their hosts. By the seventh day God completed His work which He had done, and He rested on the seventh day from all His work which He had done.” (Genesis 2:1-2 NASB)

Very interesting how these birds have developed and interbred over the centuries. With isolation, much interbreeding within the species has helped influence these varieties within the families and orders.

See More of Ian’s posts at:

Ian’s Bird of the Week

Who Paints the Leaves?

Ian’s Bird of the Moment – Island Thrush

When preparing editions of the Irregular Bird, I enjoy researching the natural history of the species in question. However, as anyone who goes on such a quest on the internet would know, this often proves to be a bit of a rabbit hole leading in unpredictable directions and taking up lots of time.

island_thrush_39679_pp.jpg
Such was the case this time round as I had decided, given our current travel-free situation, to take us on a trip to Christmas Island with photos of about ten of the most interesting species. This led me down endless rabbit holes and the weeks ticked by. One of these that I found particularly interesting, biogeographically and taxonomically, was the Island Thrush and, unlike most of the others, it hasn’t featured previously as an Irregular Bird, or Bird of the Week as it was in 2006.
island_thrush_39685_pp.jpg
This rather smart thrush is one of the typical thrushes comprising the genus Turdus, the members of which are widespread throughout Eurasia, Africa and the Americas and includes such well-known species as the Common Blackbird, the Song and Mistle Thrushes of Eurasia and the American Robin. The Island Thrush is about the same size as the Common Blackbird, to which it is closely related and is also a fine songster with a similar flutey song (listen to it here https://www.xeno-canto.org/204160).
island_thrush_39675_pp.jpg
This particular subspecies erythropleurus (meaning red-sided, or literally red-ribbed) is endemic to Christmas Island and was originally described as a full species Turdus erythropleurus by Sharpe in 1887. Subsequently it was found to be a race of the Island Thrush which is widespread but local through Southeast Asia from Sumatra and the Philippines and tropical Australasia and Oceania as far east as Samoa. Christmas Island is indicated by the brown arrow on the map below.
Island_thrush_distribution.jpg
The first race of the species was described by Latham in 1801. He called it the Grey-headed Blackbird, Turdus poliocephalus (polios is Greek for grey). It occurred only on Norfolk Island (horizontal black arrow on the map) and is now extinct, while another ‘species’ the Vinous-tinted Blackbird Turdus vinitinctus, also now extinct, was described on Lord Howe Island (vertical black arrow). The Christmas Island race is the sole surviving one on Australia territory.
mathews_1928_p27.jpg
You may be struck by the different plumages of the various races, so it isn’t surprising that they were originally treated as different species. The colour plate above was created by the Danish artist Henrik Gronvold, and published in this book, below, an appendix to the Birds of Australia, by Gregory Mathews in 1928. 
mathews_1928.jpg
In fact, all the various populations of the Island Thrush differ greatly from each other in appearance. Below, stolen from Guy Dutson’s Birds of Melanesia, are two other races, one completely black (efatensis on Efate, an island of Vanuatu) and the other with a white head (albifrons on Erromango, another island of Vanuatu). In some race, the sexes are similar, in others they are different and the plumages of the juveniles are quite variable too. In fact the Island Thrush’s main claim to fame is that it is globally the most variable species of bird with nearly 50 subspecies. DNA studies show that the subspecies  appear to be all closely related with one exception: the northernmost one on Taiwan, niveiceps, is considered a candidate for elevation to species rank.
birds_of_melanesia_dutson_7653.jpg
The variability and wide range of the Island Thrush is paradoxical from the point of view of biogeography. On the one hand, varability and divergent subspecies indicates isolation with a lack of genetic flow among populations, i.e. the birds don’t move between islands. On the other hand, the wide range suggests that the Island Thrush is or was very good at getting from one place to another. This apparent contradiction is another mystery waiting to be solved.
turdus_poliocephalus_vinitinctus.jpg
John Gould also illustrated the Vinous-tinted Blackbird on Lord Howe. Like the Grey-headed nominate race of Norfolk Island, the sexes were similar so the browner bird in the plate presumably represents a juvenile. In the background are the two high mountains on Lord Howe, Mount LIdgbird (left) and the flat-topped Mount Gower. This species was quite common until a shipwreck introduced rats to the island in 1918 with fatal consequences for this ground-nesting bird.
mt_lidgbird_mt_gower_lord_howe_3184_900-ps.jpg
Here are the two mountains on Lord Howe in 2013, photographed from the other side of the island from the John Gould illustration. So, we did sort of do a trip even if we ended up on Lord Howe instead of Christmas Island. I will prepare the rest of the photos for a trip to Christmas Island and try not to get too diverted by avian rabbit holes.
 
Spending a lot of time in isolation has given me the opportunity to work on the website not only adding birds and mammals from the trip to Brazil and Chile last year (about 120 species at last count), but also digging up neglected photos of other wildlife from earlier trips. If you are interested in checking these out, you can do so via the thumbnails on the Recently Added Photos page: http://www.birdway.com.au/recent_additions.php.
 
Greetings and stay safe,
Ian

Ian Montgomery,
454 Forestry Road, Bluewater, Qld 4818
Phone: 0411 602 737 +61-411 602 737
Preferred Email: ian@birdway.com.au

Recorder Society http://www.nqrs.org.au

 

Lee’s Addition:

I am always grateful when I get the surprise Birds of the “Moment” from Ian. When he used to do the Bird of the Week, they were very regular. Now, I love being surprised by Ian. [He is becoming almost as “off-schedule” as I am.] At any rate, what a beautiful and neat looking Thrush. Thanks, Ian for sharing another avian wonder with us.

“Even the stork in the sky Knows her seasons; And the turtledove and the swift and the thrush Observe the time of their migration; But My people do not know The ordinance of the LORD.” (Jeremiah 8:7 NASB)

Birds of the Bible – Thrushes

Ian’s Birds of the Week/Moment

Ian’s Bird of the Week – Christmas Island White-eye

Christmas Island White-eye (Zosterops natalis) by Ian

Ian’s Bird of the World – Christmas Island White-eye ~ by Ian Montgomery

Newsletter ~ 12/23/14

Here is a Christmas Island endemic to celebrate the festive season appropriately. It’s not the most spectacular bird but all the other birds with ‘Christmas’ in the name that I’ve photographed have already featured as bird of the week.
Happily, it’s quite partial to posing beside spectacular flowers, first and third photos and its endemic status gives it special significance. The first two photos were taken at the Christmas Island Resort on the eastern side of the island, – that’s Christmas Island in the Indian Ocean, not Christmas Island (Kirimati part of Kiribati) in the Pacific. The resort used to be a casino for Indonesian high-rollers, opened by an enterprising entrepreneur in 1993 following the closure in 1981 of the three licensed Indonesian casinos in Jakarta, a mere one hour away by private jet. It closed in 1998, a victim of the Asian financial crisis and was empty when we visited it in 2006. It has recently reopened as an ordinary resort, promoting more socially acceptable activities such as honeymoons and bird watching.

The White-eye is quite abundant on the island. The third photo was taken in the grounds of Government House, where the Governor used to live. It was also empty in 2006, the Administrator choosing to live in more democratic surroundings. Government House is just across the bay from Flying Fish Cove and it is good for bird watching. If I were Administrator, I would prefer to live there. There is supposed to be a small population persisting in the Cocos (Keeling) Islands, introduced between 1885 and 1900, but there is disagreement between Handbook of Birds of the World and BirdLife International as to where it survives (Horsburgh Island or around the settlement on West Island, respectively).

Anyway, below is my best wishes for Christmas and New Year. I’m avoiding ‘Merry’ as it suggests drunkeness and ‘Prosperous’  as it seems a bit greedy, so interpret the message how it accords best with you.

I think the bird on the left is a Grey Heron as it has a crest and the one on the right a White Stork  a well-loved bird in Strasbourg. We did go looking for them in a park in early October where they occur, but they had already left for the winter and we had to wait until we got to the Pyrenees before we caught up with any:

Greetings
Ian
**************************************************
Ian Montgomery, Birdway Pty Ltd,
454 Forestry Road, Bluewater, Qld 4818
Tel 0411 602 737 ian@birdway.com.au
Bird Photos http://www.birdway.com.au/
Where to Find Birds in Northern QueenslandiTunesGoogle Play Kobo Books
Recorder Society http://www.nqrs.org.au

Lee’s Addition:

“But as it is written, Eye hath not seen, nor ear heard, neither have entered into the heart of man, the things which God hath prepared for them that love him. (1 Corinthians 2:9 KJV)

This was a pleasant surprise article from Ian. Wasn’t expecting one so soon. How appropriate though. I especially love that first picture.

White-eyes are members of the Zosteropidae – White-eyes Family. There are 128 species that make up the family, of which 96 are White-eyes.

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Some Christmas Birds (Re-posted)

Christmas White-eye (Zosterops natalis) by Ian

Christmas White-eye (Zosterops natalis) by Ian

Luke 2:15-20 KJV

(15) And it came to pass, as the angels were gone away from them into heaven, the shepherds said one to another, Let us now go even unto Bethlehem, and see this thing which is come to pass, which the Lord hath made known unto us.

(16) And they came with haste, and found Mary, and Joseph, and the babe lying in a manger.

(17) And when they had seen it, they made known abroad the saying which was told them concerning this child.

(18) And all they that heard it wondered at those things which were told them by the shepherds.

(19) But Mary kept all these things, and pondered them in her heart.

(20) And the shepherds returned, glorifying and praising God for all the things that they had heard and seen, as it was told unto them.

Flag of Christmas Island

Flag of Christmas Island©WikiC

While searching to find birds to write about with a Christmas theme, I came across the Territory of Christmas Island which belongs to Australia. It is in the Indian Ocean and only has a population of 1,403 residents who live in a number of “settlement areas” on the northern tip of the island.

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Abbott's Booby (Papasula abbotti) by Ian

Abbott’s Booby (Papasula abbotti) by Ian

The island’s geographic isolation and history of minimal human disturbance has led to a high level of endemism (or state of being unique to a defined geographic location, such as an island, nation or other defined zone, or habitat type, and found only there) among its flora and fauna, which is of significant interest to scientists and naturalists. 63% of its 135 square kilometres (52 sq mi) is an Australian national park. There exist large areas of primary monsoonal forest.

Christmas Frigatebird (Fregata andrewsi) by Ian

Christmas Frigatebird (Fregata andrewsi) by Ian

Christmas Island is a focal point for sea birds of various species. Eight species or subspecies of sea birds nest on the island. The most numerous is the Red-footed Booby that nests in colonies, in trees, on many parts of the shore terrace. The widespread Brown Booby nests on the ground near the edge of the seacliff and inland cliffs. Abbott’s Booby nests on tall emergent trees of the western, northern and southern plateau rainforest. The Christmas Island forest is the only nesting habitat of the Abbott’s Booby left in the world. The endemic Christmas Island Frigatebird (listed as endangered) has nesting areas on the north-eastern shore terraces and the more widespread Great Frigatebirds nest in semi-deciduous trees on the shore terrace with the greatest concentrations being in the North West and South Point areas. The Common Noddy and two species of bosuns or tropicbirds, with their brilliant gold or silver plumage and distinctive streamer tail feathers, also nest on the island.

Christmas Imperial Pigeon (Ducula whartoni) by Ian Montgomery

Christmas Imperial Pigeon (Ducula whartoni) by Ian Montgomery

Of the ten native land birds and shorebirds, seven are endemic species or subspecies. This includes the Christmas Island Thrush, and the Christmas Island Imperial Pigeon. Some 86 migrant bird species have been recorded as visitors to the Island.

Christmas Boobook (Ninox natalis) by Ian

Christmas Boobook (Ninox natalis) by Ian

The list of birds from the I.O.C., which I use, lists five birds starting with Christmas. The Christmas Boobook (or Christmas Island Hawk-Owl), Christmas Frigatebird, Christmas Imperial Pigeon, Christmas Shearwater, and the Christmas White-eye.

Christmas Shearwater (Puffinus nativitatis) ©WikiC

Christmas Shearwater (Puffinus nativitatis) ©WikiC

Red-footed Booby (Sula sula) by Bob-Nan

Red-footed Booby (Sula sula) by Bob-Nan

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Some information from Wikipedia and other internet sources.

See Also:

Christmas Island – Wikipedia

(This was originally posted Christmas time 2010.)

(Starting the 17th, there is a series of Christmas Birds coming.)

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Some Christmas Birds

Christmas White-eye (Zosterops natalis) by Ian

Christmas White-eye (Zosterops natalis) by Ian

Luke 2:15-20 KJV

(15) And it came to pass, as the angels were gone away from them into heaven, the shepherds said one to another, Let us now go even unto Bethlehem, and see this thing which is come to pass, which the Lord hath made known unto us.

(16) And they came with haste, and found Mary, and Joseph, and the babe lying in a manger.

(17) And when they had seen it, they made known abroad the saying which was told them concerning this child.

(18) And all they that heard it wondered at those things which were told them by the shepherds.

(19) But Mary kept all these things, and pondered them in her heart.

(20) And the shepherds returned, glorifying and praising God for all the things that they had heard and seen, as it was told unto them.

Flag of Christmas Island

Flag of Christmas Island©WikiC

While searching to find birds to write about with a Christmas theme, I came across the Territory of Christmas Island which belongs to Australia. It is in the Indian Ocean and only has a population of 1,403 residents who live in a number of “settlement areas” on the northern tip of the island.

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Abbott's Booby (Papasula abbotti) by Ian

Abbott's Booby (Papasula abbotti) by Ian

The island’s geographic isolation and history of minimal human disturbance has led to a high level of endemism (or state of being unique to a defined geographic location, such as an island, nation or other defined zone, or habitat type, and found only there) among its flora and fauna, which is of significant interest to scientists and naturalists. 63% of its 135 square kilometres (52 sq mi) is an Australian national park. There exist large areas of primary monsoonal forest.

Christmas Frigatebird (Fregata andrewsi) by Ian

Christmas Frigatebird (Fregata andrewsi) by Ian

Christmas Island is a focal point for sea birds of various species. Eight species or subspecies of sea birds nest on the island. The most numerous is the Red-footed Booby that nests in colonies, in trees, on many parts of the shore terrace. The widespread Brown Booby nests on the ground near the edge of the seacliff and inland cliffs. Abbott’s Booby nests on tall emergent trees of the western, northern and southern plateau rainforest. The Christmas Island forest is the only nesting habitat of the Abbott’s Booby left in the world. The endemic Christmas Island Frigatebird (listed as endangered) has nesting areas on the north-eastern shore terraces and the more widespread Great Frigatebirds nest in semi-deciduous trees on the shore terrace with the greatest concentrations being in the North West and South Point areas. The Common Noddy and two species of bosuns or tropicbirds, with their brilliant gold or silver plumage and distinctive streamer tail feathers, also nest on the island.

Christmas Imperial Pigeon (Ducula whartoni) by Ian Montgomery

Christmas Imperial Pigeon (Ducula whartoni) by Ian Montgomery

Of the ten native land birds and shorebirds, seven are endemic species or subspecies. This includes the Christmas Island Thrush, and the Christmas Island Imperial Pigeon. Some 86 migrant bird species have been recorded as visitors to the Island.

Christmas Boobook (Ninox natalis) by Ian

Christmas Boobook (Ninox natalis) by Ian

The list of birds from the I.O.C., which I use, lists five birds starting with Christmas. The Christmas Boobook (or Christmas Island Hawk-Owl), Christmas Frigatebird, Christmas Imperial Pigeon, Christmas Shearwater, and the Christmas White-eye.

Christmas Shearwater (Puffinus nativitatis) ©WikiC

Christmas Shearwater (Puffinus nativitatis) ©WikiC


Red-footed Booby (Sula sula) by Bob-Nan

Red-footed Booby (Sula sula) by Bob-Nan

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Some information from Wikipedia and other internet sources.

See Also:

Christmas Island – Wikipedia

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