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desert

Red-backed Fairywren - Speciation and Biodiversity

How do new kinds of birds and animals arise in the world? How does nature proceed from having a single species to having two different species? To find out, Dr. Mike Webster of the Cornell Lab of Ornithology is studying Red-backed Fairywrens in Australia. These birds, like the male pictured here,... read more »

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Topics & Themes:  ecology, ornithology, plumage

Sparrows Sing in Arizona Monsoon

Midday temperatures in southeast Arizona soar above 100 degrees during the month of July. But relief is coming. A summer monsoon refreshes the Sonoran Desert like a second spring. Grass grows lush, wildflowers spring forth, and birds sing. Cassin’s Sparrows sing their plaintive phrases almost... read more »

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Bosque del Apache, High Desert Oasis

At this time of year, Bosque del Apache National Wildlife Refuge in New Mexico is a birder's paradise. The refuge — critical wintering habitat for great numbers of birds — sits where the north edge of the Chihuahuan desert meets the Rio Grande River. Witness the magnificent spectacle of the... read more »

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Topics & Themes:  festival

Black-throated Sparrow Sings in the Desert

The Black-throated Sparrow thrives in the open, arid habitats of the American Southwest. Nature maintains such native landscapes with frequent but relatively cool-burning fires. But decades of fire suppression have altered nature's pattern, setting the stage for hotter, more destructive fires.... read more »

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Walk Down an Arroyo

Arroyo means "stream" in Spanish. With mesquite, yucca, and cactus along their edges, arroyos in the Southwest fill with water only a few times a year, mostly during the heavy rains of late summer. There's a remarkable diversity of wildlife here, including this Pyrrhuloxia. Birds here are most... read more »

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Cactus Wren Nest Orientation

Cactus Wrens, which may nest several times between March and September, carefully orient their nests in tune with the season. These bulky twig structures have a side entrance that curves toward the inner chamber. When building a nest for the hot months, the wren faces the opening to receive the... read more »

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Topics & Themes:  nesting

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