Shows With Contributions by Dennis Paulson

Unique Chaparral

The dense cover of coastal chaparral supports many birds found nowhere else in the world, including this California Thrasher. The plant species are different, but the chaparral of California is much like shrubby coastal vegetation in southern Europe, South Africa, southern Australia, and Chile.... read more »

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Long-billed Curlew - Singing over the Grassland

The Long-billed Curlew is North America's largest shorebird, seen here in its breeding habitat, a western grassland. They may be the largest, but they're also among the rarest. Their numbers are declining as arid grasslands disappear. Because curlews depend on very different environments for... read more »

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Topics & Themes:  breeding display, migration

Peacocks in India

Peacocks have been domesticated for thousands of years and now occur everywhere in the world. But to see wild peacocks, you'll need to go to India and Sri Lanka. Where hunted, peacocks are shy and rarely seen, and give loud alarm calls when startled. Where protected, however, they become as tame... read more »

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Seabirds Drink Salt Water

Seabirds have no problem drinking sea water. The salt they take in is absorbed and moves through their blood stream into a pair of salt glands above their eyes. The densely salty fluid is excreted from the nostrils and runs down grooves in the bill. As the drop gets larger, the bird shakes its... read more »

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Urban Birds Change Their Tune

The soft whistles of this Great Tit, a common European bird, can be hard to hear over city noises. So these birds now sing at a higher pitch and faster than normal. This song carries better over the traffic noise of the city. A bird singing at a higher range is better able to declare its... read more »

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Topics & Themes:  science, vocalization

Lewis's Woodpeckers and Pine Forests

A century of logging and fire control has taken its toll on the mature pine forests of the West, the preferred nest site for this Lewis's Woodpecker. But there is hope. Lewis's Woodpeckers also nest along rivers in large cottonwoods, trees of little value for timber. Also, many remaining tracts... read more »

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You Are What You Eat

House Finches are familiar birds all across North America. Researchers have shown that the red coloration of males is produced from carotenoid pigments in the birds' diet. Male House Finches develop brighter plumage when they are growing in new feathers, if they eat more fruits containing... read more »

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Florida Scrub-Jay

Thousands of years ago, rising sea levels isolated much of the Florida peninsula as an island. During that long isolation, a unique oak-scrub ecosystem developed. The Florida Scrub-Jay is one of many special animals and plants that evolved with this habitat. Because they depend on acorns during... read more »

San Diego Bay in Winter

Birds and people share San Diego Bay -- a deepwater port, navy ships, pleasure boats, and salt-evaporation ponds. Even so, it’s one of the best bird habitats on the West Coast. Western Sandpipers probe the mud for worms and snails. Egrets stalk the shoreline for fish. Royal Terns crisscross the... read more »

Why Arctic Terns Have Short Beaks

The bill and legs of Arctic Terns are shorter than those of Common Terns. Because Arctic Terns breed in the Arctic and winter in the Antarctic, they are subject to much colder weather than are Common Terns. Birds' bills and legs lose heat, because they're not covered by feathers. Birds in cold... read more »

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Topics & Themes:  science