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Hi there. I have been birding most of my life and am currently a grad student working on a bird migration study. "A bird does not sing because it has an answer. It sings because it has a song."
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njwight:

They’re back…
Goofy Little Goslings!

(via njwight)

njwight:

They’re back…

Goofy Little Goslings!

(via njwight)

Monday April 14th //
Alpine Ring Ouzel (Turdus torquatus), Karwendel mountains, Austria 

by Frank.Vassen

Alpine Ring Ouzel (Turdus torquatus), Karwendel mountains, Austria

by Frank.Vassen

Wednesday April 9th // Filed under: animals, nature, outdoors, birds, birding, aves, songbird, wildlife,
Courage is not the absence of fear, but the mastery of it. 


(by wildphotons)

Mountain bluebird

Courage is not the absence of fear, but the mastery of it.


(by wildphotons)

Mountain bluebird

Sunday March 30th // Filed under: birds, aves, thrush, nature, animals, wildlife, birding, songbird, bluebird, creative commons,
"Swirling air can make hummingbirds work harder to hover, but only when the air’s vortices open wider than a bird’s wing. 

The first measurements of how much a flying animal’s metabolism revs up when coping with turbulent air come from five Anna’s hummingbirds (Calypte anna) that Victor M. Ortega-Jimenez of the University of California, Berkeley and his colleagues tested. In a wind tunnel, the hummingbirds hovered at a feeder downwind from a cylinder of varying size. Buffeted by vortices of air whipping off slim cylinders (2 or 4 centimeters in diameter), the birds held their position without needing extra oxygen even with wind speeds of 9 meters a second, or about 20 miles per hour. 

But when researchers used a 9-centimeter-wide cylinder, vortices widened to 173 percent of wing length. This time hummingbird metabolisms increased some 25 percent on average — even at gentler wind speeds of 3 and 6 meters per second. The hummingbirds relied on asymmetric tail and wing motions to hover in place, the researchers report March 26 in Proceedings of the Royal Society B.” 

(via When hummingbirds fly unfriendly skies | Science News)

"Swirling air can make hummingbirds work harder to hover, but only when the air’s vortices open wider than a bird’s wing.

The first measurements of how much a flying animal’s metabolism revs up when coping with turbulent air come from five Anna’s hummingbirds (Calypte anna) that Victor M. Ortega-Jimenez of the University of California, Berkeley and his colleagues tested. In a wind tunnel, the hummingbirds hovered at a feeder downwind from a cylinder of varying size. Buffeted by vortices of air whipping off slim cylinders (2 or 4 centimeters in diameter), the birds held their position without needing extra oxygen even with wind speeds of 9 meters a second, or about 20 miles per hour.

But when researchers used a 9-centimeter-wide cylinder, vortices widened to 173 percent of wing length. This time hummingbird metabolisms increased some 25 percent on average — even at gentler wind speeds of 3 and 6 meters per second. The hummingbirds relied on asymmetric tail and wing motions to hover in place, the researchers report March 26 in Proceedings of the Royal Society B.”

(via When hummingbirds fly unfriendly skies | Science News)

Sunday March 30th // Filed under: nature, biology, ornithology, outdoors, birding, aves, hummingbird, energetics,
Saturday March 22nd //
earth-song:

Blue-throated Barbet Iby JWeber2112

earth-song:

Blue-throated Barbet Iby JWeber2112

Tuesday March 11th //