Arctic terns mating
By: Unknown photographer
From: Wildlife Fact-File
1990s
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The great auk.
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Cream-colored Courser (Cursorius cursor), parent with chicks, fdamily Glareolidae, order Charadriiformes, found in North Africa and the Middle East
photograph by Seyed Babak Musavi
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[1697/10977] Bronze-winged courser - Rhinoptilus chalcopterus
Order: Charadriiformes
Suborder: Lari
Family: Glareolidae (pratincoles and coursers)
Subfamily: Cursoriinae (coursers)
Photo credit: Fernando Nunes via Macaulay Library
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The mancallines were a lineage of flightless semi-aquatic birds closely related to auks. Known from the Pacific coasts of what are now California and Mexico, between about 7.5 and 0.5 million years ago, they convergently evolved a close resemblance and similar lifestyle to both the recently-extinct North Atlantic great auk and the southern penguins.
Miomancalla howardi here lived in offshore waters around southern California during the late Miocene (~7-5 million years ago). The largest of the mancallines, it just slightly beat out the great auk in size – standing around 90cm tall (~3') and weighing an estimated 5kg (11lbs).
Like great auks and penguins it would have been a specialized wing-propelled diver, swimming using "underwater flight" to feed on small bait fish. It probably spent much of its life out at sea, probably only returning to land to molt and breed.
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A crested auklet (Aethia cristatella) sits cliffside on St Paul Island, Alaska, USA
by Isaac Sanchez
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Common Tern
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day 5
today's bird is the american woodcock! meep!
the american woodcock is one of my favorite birds, if not my all time favorite! here's some fun facts about this silly bird:
- they can fly down to 5pm
- they have nearly 360 degrees of vision
- in some places, they are called the timberdoodle
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Day 2 of january extinct birds - great auk
Auks used to be called penguins, and actual penguins are named after them! It's quite amazing that two completely different groups evolved to look and behave basically the same on two sides of the Earth. Penguins don't have that epic beak though.
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Arctic Tern (Sterna paradisaea)
© Bryan Calk
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A young herring gull named Ernest
By: Unknown photographer
From: Natural History Magazine
1936
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Uncharismatic Fact of the Day
For snails, traveling long distances can be a bit of a challenge due to their size and extremely slow speed. Fortunatelly, snails in the genus Physa have found a workaround! In early February, about 20-30 snails will attach themselves to the wings of an upland sandpiper and hitch a ride south with the bird's migration.
(Images: The freshwater snail Physa acuta and its temporary host the upland sandpiper (Bartramia longicauda) by David Liebman and Nick Varvel respectively)
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African Jacana (Actophilornis africanus), family Jacanidae, order Charadriiformes, Kigali, Rwanda
photograph by Will Wilson
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[2724/11080] Cream-coloured courser - Cursorius cursor
Order: Charadriiformes
Suborder: Lari
Family: Glareolidae (pratincoles and coursers)
Subfamily: Cursoriinae (coursers)
Photo credit: Aitor gil guruceaga via Macaulay Library
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Arctic Tern (Sterna paradisaea)
© Bryan Calk
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