Dein Suchergebnis zum Thema: Depression

On Peru’s pacific coastline, where desert meets sea, lives one of the least studied and most at-risk birds: the Peruvian tern. This bird’s desert camouflage makes it almost impossible to track, but that’s exactly what our team set out to do.
Trained eyes and determination helped us detect the subtle circular depression in

On March 13, the newly renovated Bird House’s doors will flap open, welcoming guests with a chorus of chirps, tweets and quacks. Yes, quacks! Get to know the 11 lucky duck species in the Bird House from animal keeper Jen Ferraro.
After several days of searching, she builds her nest by scraping a depression in

Spring has arrived, and vernal pools are surging with life. Learn what makes these temporary wetlands ideal for wood frogs, spotted salamanders and other woodland species.
Image: Vernal pools, like the one pictured above, are shallow depressions that

This tiny, yellowish-green songbird sings a three-note series of accelerating chips. Despite its name, these warblers do not breed in Tennessee, and only pass through the state as they embark on their seasonal migration to their breeding grounds in Canada’s boreal forest. 
Females often build nests in boggy ground, hidden in small depressions among bushes

Also called the Bahama pintail, the white-cheeked pintail is a medium-sized, non-migratory duck known for its striking and distinguished plumage. It lives year-round in coastal and saltwater habitats in parts of the Caribbean, South America, Florida and the Galápagos Islands.
Their nests are made from shallow ground depressions, or scrapes, which are filled

Black-necked stilts are a tall, medium-size shorebird with black-and-white coloration, long pink legs, a long neck, and a straight black bill. They spend most of their days gracefully darting along shorelines and wetlands and wading in shallow water. 
The nests themselves are formed by making small depressions in the ground and lining

This eye-catching shorebird is native to the Atlantic and Pacific coasts of the Americas. True to its name, the American oystercatcher feeds on oysters, saltwater mollusks, shellfish and other marine invertebrates, using its thick red bill to jab at shelled prey and pluck the contents from within.
Their nests, called scrapes, are shallow depressions dug into the ground that are

Native to the rocky slopes and arid plateau areas of southwestern Africa, Hartmann’s mountain zebras are large herbivores known for their black and white-striped coats. Hartmann’s mountain zebras are a rare subspecies of the mountain zebra, which is one of three types of zebras.
After the zebras leave the area, the shallow depressions left in the ground become

White-naped cranes are an elegant species native to Northern Mongolia, southern Siberia, Korea, Japan and central China. They are slightly smaller than red-crowned cranes. This bird has a white nape and vertical gray stripes on its neck, as well as a distinct red patch surrounding its eyes. 
in grassy marshes, wet sedge meadows and reedbeds in broad river valleys, lake depressions

Breeding season at the Bird House can create some spectacular behavior among the Zoo’s raucous flock of ducks.
Each spring, rain and melting snow fills millions of shallow ground depressions,