Brown Pelicans fly just above the surface of the water. They circle high, then diving headfirst, plunge under water to catch fish. But doesn't that hurt? Several adaptations protect pelicans as they dive. First, they have air sacs beneath the skin on their breasts, which act as cushions. Pelicans have also learned that a steep dive angle, reduces aiming errors caused by water surface refraction.More info and transcript at BirdNote.org.Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks.Ā BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible.Ā
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Quail and Their Fancy Feathers
Gambelās Quail and California Quail are both well known for the comma-shaped tuft of inky black feathers poised atop the crown of their heads. For both species, this decorative ātopknotā is formed from six individual feathers that contour together into a single structure. Yet theyāre hardly the only quail with a fashionable updo. Though we donāt know exactly why so many quail evolved elaborate headdresses, they may help the birds attract a mate or intimidate competitors.More info and transcript at BirdNote.org.Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks.Ā BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible.Ā
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Male Mallards Disappear
By late summer, the male Mallardās need for fancy feathers to attract the females has passed. These birds have molted, and their bright feathers are replaced with mottled brown ones. Subdued colors help camouflage the male ducks, protecting them from predators. Come fall, the male Mallards will molt again and become the colorful dandies we remember.More info and transcript at BirdNote.org.Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks.Ā BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible.Ā
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Parakeets Underground
Burrowing Parakeets excavate deep nest tunnels in sandstone and limestone cliffs in Argentina and Chile. The colonyās many tunnels zigzag and interconnect, creating an intricate labyrinth. Their nesting colonies are among the largest of any parrot ā one in Argentina has 70,000 birds!Ā”Escuche este episodio en espaƱol aquĆ!More info and transcript at BirdNote.org.Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks.Ā BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible.
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Ultraviolet Vision
Most birds possess the ability to see color. But birds can also see in the ultraviolet spectrum! Hummingbirds ā like this Violet-crowned Hummingbird ā may zero in on certain flowers because their petals strongly reflect in the ultraviolet range. Migrating birds may use ultraviolet light to navigate on overcast days, because the sun's ultraviolet rays pass through the cloud cover.This episode is sponsored by Bird Conservancy of the Rockies. The world needs birds. To learn more about their work and mission, visit birdconservancy.org.More info and transcript at BirdNote.org.Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks.Ā BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible.
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