Ian’s Bird of the Week – Channel-billed Cuckoo

Channel-billed Cuckoo (Scythrops novaehollandiae) by Ian

Channel-billed Cuckoo (Scythrops novaehollandiae) by Ian 1

Ian’s Bird of the Week – Channel-billed Cuckoo ~ by Ian Montgomery

Newsletter ~ 1-21-13

Last week, sorry fortnight, we had the Little Bronze-Cuckoo, the smallest Australian Cuckoo. Here is the Channel-billed Cuckoo, the largest parasitic cuckoo in Australia, and the world for that matter, with a length to 65cm/26in and a weight exceeding 900g/2lbs. (Coucals, such as the Pheasant Coucal , to 75cm, are larger and are now included in the Cuckoo family, but are not parasitic.)

The bird in the first photo is an adult, distinguishable by the grey back (no buff patches) and the red eye and facial skin. The genus name Scythrops means ‘angry eye’ in Greek. The second photo shows a juvenile and you can see the buff patches on the wing, head and throat, though the grey facial skin looks as if it is beginning to acquire the red colour of the adult. This photo was taken in April when the birds would about to migrate to New Guinea.

Channel-billed Cuckoo (Scythrops novaehollandiae) by Ian

Channel-billed Cuckoo (Scythrops novaehollandiae) by Ian 2

Channel-billed Cuckoos lay their large eggs in the nests of Currawongs, Crows, Ravens, Magpies and even Sparrowhawks. The third photo, which appeared as the bird of the week in 2005, shows a very demanding chick with a very nerve-wracked looking foster parent Pied Currawong in the Sydney Metropolitan Area. The adult Cuckoos may break the eggs of the host bird but the chicks do not usually evict the eggs or chicks. Instead they out-compete them for food.

Channel-billed Cuckoo (Scythrops novaehollandiae) by Ian

Channel-billed Cuckoo (Scythrops novaehollandiae) by Ian 3

Channel-bills are mainly migratory, though some are though to remain in the Northern Territory throughout the winter. The juvenile in the fourth photo was being fed by Torresian Crow foster parents in the Top End in early September, so it would have hatched in July.

Channel-billed Cuckoo (Scythrops novaehollandiae) by Ian

Channel-billed Cuckoo (Scythrops novaehollandiae) by Ian 4

Typically of Cuckoos, Channel-bills are quite shy and usually remain hidden in foliage but their loud trumpeting calls give them away. They do fly in the open, particular before dusk and look very striking – their long tails and long pointed wings look rather raptor-like, though the large bill doesn’t, and they are often likened to flying crosses.

Best wishes
Ian

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Ian Montgomery, Birdway Pty Ltd,
454 Forestry Road, Bluewater, Qld 4818
Tel 0411 602 737 ian@birdway.com.au
Check the latest website updates:
http://www.birdway.com.au/#updates


Lee’s Addition:

And the owl, and the night hawk, and the cuckoo, and the hawk after his kind, (Deuteronomy 14:15 KJV)

The Cuckoos are in the Cucuilidae Family and are also one of the Birds of the Bible, listed in the Unclean Birds.

 

See:

Ian’s Cuckoos, Coucals & Allies

Cucuilidae – Cuckoo Family

Birds of the Bible – Cuckoo

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Birds of the Bible – Bird Egg Facts

Common Ostrich (Struthio camelus) by Bob-Nan

Common Ostrich (Struthio camelus) by Bob-Nan

Eggs

Gavest thou the goodly wings unto the peacocks? or wings and feathers unto the ostrich? Which leaveth her eggs in the earth, and warmeth them in dust, And forgetteth that the foot may crush them, or that the wild beast may break them. (Job 39:13-15 KJV)

The largest bird egg is from the Ostrich Sturthio camelus. The egg measures 15 – 20 cm long, 10 – 15 cm in diameter and weighs 1 – 1.78 kg.
Largest egg ~ Ostrich  ~ measuring 17.8 by 14 cm (7 by 4.5 in)
Smallest egg laid relative to body weight ~ Ostrich egg ~ at 1.5%

Ostrich Egg ©WikiC

Ostrich Egg ©WikiC

An ostrich egg needs to be boiled for 2 hours to get a hard-boiled egg.

Can that which is unsavoury be eaten without salt? or is there any taste in the white of an egg? (Job 6:6 KJV)

Thinking

Largest Egg – living ~ Ostrich
Largest Egg – ever ~ Elephant Bird Aepyornis maximus From Madagascar 39cm/15.4in long = 12 litres/2.6 gallons, 220 chicken eggs, egg weighed 27 pounds.

Superb Lyrebird (Menura novaehollandiae) by Ian

Superb Lyrebird (Menura novaehollandiae) by Ian

Largest egg laid by a passerine ~ 5 7 g (2 oz) by Australian Lyrebirds
Largest egg laid relative to body weight ~ Little Spotted Kiwi at 26%

Vervain Hummingbird (Mellisuga minima) ©WikiC

Vervain Hummingbird (Mellisuga minima) ©WikiC

Smallest known egg ~ the Vervain Hummingbird Mellisuga minima of Jamacia and nearby islets. The egg is barely the size of a pea and measures less than 10 mm in length and weighs 0.356 g.
You could put 4700 bee hummingbird eggs inside one ostrich egg. The Bee Hummingbird egg is the size of a small pea and weighs .02 ounces. World’s Smallest Bird
Smallest egg ~ West Indian Vervain Hummingbird ~ at 10 mm (0.39 in) in length and 0.375 g (0.0132 oz)
Smallest Egg – living ~ Vervain Hummingbird Mellisuga minima ~ the size of pea

Or if he shall ask an egg, will he offer him a scorpion? If ye then, being evil, know how to give good gifts unto your children: how much more shall your heavenly Father give the Holy Spirit to them that ask him? (Luke 11:12-13 KJV)

Shape

Different Eggs- Birds and Others - from Wikipedia

Different Eggs- Birds and Others – from Wikipedia

The majority of avian eggs match the shape of chicken eggs, but there are some exceptions.

  • Budgies, for instance, tend to lay very round eggs.
  • Fast-flying, stream-lined birds like swifts and swallows lay long, elliptical eggs.
  • Owls tend to lay very spherical eggs.
  • Roundest eggs ~ Owls, Tinamous
Northern Royal Albatross (Diomedea sanfordi) ©©Flickr

Northern Royal Albatross (Diomedea sanfordi) ©©Flickr

The Royal Albatross’ eggs take 79 days to hatch.
Precocial birds like chickens, ostriches, ducks, and seagulls hatch ready to move around. They come from eggs with bigger yolks than altricial birds like owls, woodpeckers, and most small songbirds that need a lot of care from parents in order to survive.

Maleo (Macrocephalon maleo) egg ©©Wong Dermayu

Maleo (Macrocephalon maleo) egg ©©Wong Dermayu

Longest interval between eggs laid ~ Maleo ~ at 1012 day intervals

Eurasian Blue Tit (Cyanistes caeruleus) by Robert Scanlon by Robert Scanlon

Eurasian Blue Tit (Cyanistes caeruleus) by Robert Scanlon by Robert Scanlon

Largest clutch laid by a nidicolous species ~ 19 eggs laid by a European Blue Tit
Largest clutch laid by a nidifugous species ~ 28 by a Bobwhite Quail
Largest average clutch size ~ 15-19 by a Gray Partridge
Smallest clutch size ~ 1 egg laid every 2 years by Albatrosses

Mallard (Anas platyrhynchos) By Dan'sPix

Mallard (Anas platyrhynchos) By Dan’sPix at Lake Hollingsworth

Greatest number of eggs laid consecutively ~ 146 by a Mallard
Most valuable bird ~ 8 billion domestic chickens ~ produce 562 billion eggs annually
Highest price paid for an egg ~ 1,000 British pounds for an egg of extinct Aepyornis maximus

And my hand hath found as a nest the riches of the people: and as one gathereth eggs that are left, have I gathered all the earth; and there was none that moved the wing, or opened the mouth, or peeped. (Isaiah 10:14 KJV)

Shell

Bird eggshells are diverse. For example:

  • Cormorant eggs are rough and chalky
  • Tinamou eggs are shiny
  • Duck eggs are oily and waterproof
  • Cassowary eggs are heavily pitted

Tiny pores in bird eggshells allow the embryo to breathe. The domestic hen’s egg has around 7500 pores.

The most yolks ever found in a single chicken’s egg is nine.

Nests

Mallee Fowl Mound ©©

Largest individual nest ~ Mallee Fowl Australia Leipoa ocellata ~ builds a mound 5 m (16.5ft) high and 11 metres (36ft) wide. A mound this size means the bird moved 250 cubic metres of vegetation and 300 tons of soil.
Smallest nest ~

  • many seabirds do not make a nest at all, nest on ground or
  • in case of Fairy Tern on a branch of a tree
  • The prize goes to the Hummingbirds for their thimble sized (1cm squared) nests.

The largest nest was built by a pair of Bald Eagles Haliaeetus leucocephalus was 2.9 m wide and 6 m deep.

Rhinoceros Auklet (Cerorhinca monocerata) ©WikiC

Rhinoceros Auklet (Cerorhinca monocerata) ©WikiC

The Rhinoceros Auklet Cerorhinca monocerata which measures 35 cm and nests on islands in the North Pacific excavates a burrow of 2 – 3 m in length. Burrows up to 6 m are not uncommon and 8 m burrows have also been found.

The only species of parrot that builds a nest is the Quaker Parrot. The Quakers link their nests together to form structures akin to “bird condominiums”. These nests can reach weights greater than 200 lbs.

Largest recorded nesting bird colony: 136 million Passenger Pigeon nesting in an area in Wisconsin covering 1,942 sq km (750 sq mi)

Isn’t it amazing how the Lord created each bird’s egg to help it survive and for it to do His command to:

And God blessed them, saying, “Be fruitful and multiply, and fill the waters in the seas, and let birds multiply on the earth.” (Genesis 1:22 NKJV)

(Various internet resources used and Wikipedia)

See Also:

Formed By Him – Bird Eggs
Macrocephalon Maleo – The Mute Missionary…
When I Consider – Guillemot
Egg And Nest Identification
Bird Eggs Photo Search
Hummingbird Nest & Eggs

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