Posts tagged bird.
Crow: CROW YES!
You can feel the offense on that golden eagle’s face.
Even if the last three are ravens, not crows. (Not sure of the one in the first pic—it’s crow-shaped but has magpie-ish coloration, or a trick of the camera?)
Top one is a hooded crow :)
ABC Bird of the Week: Inca Tern
This striking bird occupies part of the same habitat ruled by the ancient Inca Empire in South America. Inca Terns are best known by their dashing white mustaches, which are found on both male and female birds.
The species is found only near the cold waters of the Humboldt Current, where the birds feed on anchovies and other small fish. Like Least Terns, Inca Terns feed by plunge diving and surface dipping. The birds also scavenge scraps from sea lions, dolphins, and fishing boats. Declining fish stocks are one of the reasons for this species’ population decline.
It’s a gregarious species, nesting in colonies of several thousand birds. This recording from Pantanos de Villa Wildlife Refuge outside of Lima, Peru, gives an idea of what these colonies are like…
(read more: American Bird Conservancy)
photo by Greg Homel
Inca terns are fabulous
Travelers on a National Geographic - Lindblad expedition to Antarctica came across a leucistic chinstrap penguin. Unusual light coloring sets this penguin apart from its black-and-white brethren. Often mistaken for albinos, leucistic birds have a genetic mutation that restricts the dissemination of pigment to feathers.Click to learn more about the Antarctica expedition.Click to see more video highlights from the National Geographic - Lindblad fleet of expedition ships traveling around the globe.Click to read more about this rare penguin.Click to see video of a mutant all-black penguin.
Who knew chickens could be so cool? The colorful comb (top part) and wattle (bottom part) of the Green Junglefowl (Gallus varius) is so gorgeous! Actually, the bird isn’t exactly a chicken - it’s in the pheasant family. That explains it.You’ll find Green Junglefowl in pairs/groups of two to five in the wild led by a dominant male who leads the pack, so to speak. At night he’ll lead the rest of his troop back into the cover of the forest where the birds nest in bamboo stands at 15–20 feet above the forest floor.
The Green Junglefowl, Gallus varius also known as Javan Junglefowl, Forktail or Green Javanese Junglefowl is a medium-sized, up to 75 cm long, bird in the pheasant family Phasianidae. Recent molecular work (Kimball et al., Barrowclough) has revealed that Junglefowl and Pheasants are not monophyletic.
( read more )
Many-coloured rush tyrant (Tachuris rubrigastra)
This tiny real-life “angry bird” is a small passerine bird of South America belonging to the tyrant flycatcher family. It inhabits marshland and reedbeds around lakes and rivers. The nest is built among plant stems.photo credits: Glenn Bartley, David Brassington
These colorful birds are both Swallow tanagers, Tersina viridis (Passeriformes - Thraupidae), a species native to South America that displays a distinctive, sexually dimorphic, coloration.
Male Swallow Tanagers (top) are shining turquoise blue, with a broad bill and black on the forehead and throat. While females (bottom) are a dull green overall with buffy yellow underparts.
Locality: Piraju, Sao Paulo, Brazil
Bird surveys like this and others done by plane are tracking a significant ecological shift in our region — a major decline in once-abundant marine birds. From white-winged scoters and surf scoters to long-tailed ducks, murres, loons and some seagulls, the number of everyday marine birds here has plummeted dramatically in recent decades.
Scoters are down more than 75 percent from what they were in the late 1970s. Murres have dropped even more. Western grebes have mostly vanished, falling from several hundred thousand birds to about 20,000.
The reasons often vary — from climate change and shoreline development to marine pollution and the rebound of predators such as bald eagles.
But several new studies now also link many dwindling marine bird populations to what they eat — especially herring, anchovies, sand lance and surf smelt, the tiny swimmers often dubbed forage fish…
(read more: The Seattle Times)