The killdeer (Charadrius vociferus) is a medium-sized plover. The genus name Charadrius is a Late Latin word for a yellowish bird mentioned in the fourth-century Vulgate. It derives from Ancient Greek kharadrios a bird found in ravines and river valleys (kharadra, “ravine”). The specific vociferus is Latin and comes from vox, “cry” and ferre, “to bear”. They are a noisy bird, and their English name comes from their distinctive kill deer cry. The adults have a brown back and wings, a white belly, and a white breast with two black bands. The rump is tawny orange. The face and cap […]

The Bullock’s oriole (Icterus bullockii) is a small New World blackbird. At one time, this species and the Baltimore oriole were considered to be a single species, the northern oriole. This bird was named after William Bullock, an English amateur naturalist. Bullock’s orioles are sexually dimorphic, with males being more brightly colored than females. In addition, adult males tend to be slightly larger and heavier than females. In general, adults range in mass from 29 to 43 g (1.0 to 1.5 oz). Adults have a pointed bill with a straight culmen. In adult males, the tail is long, square, and […]

The greater yellowlegs (Tringa melanoleuca) is a large North American shorebird. The genus name Tringa is the New Latin name given to the green sandpiper by Aldrovandus in 1599 based on Ancient Greek trungas, a thrush-sized, white-rumped, tail-bobbing wading bird mentioned by Aristotle. The specific melanoleuca is from Ancient Greek melas, “black”, and leukos, “white”. The greater yellowlegs is similar in appearance to the smaller lesser yellowlegs. Its closest relative, however, is the greenshank, which together with the spotted redshank form a close-knit group. Among them, these three species show all the basic leg and foot colors found in the […]

Ridgway’s rail (Rallus obsoletus) formerly known as Clapper Rail is a near-threatened species of bird. It is found principally in California’s San Francisco Bay to southern Baja California. A member of the rail family, Rallidae, it is a chicken-sized bird that rarely flies. This species is closely related to the clapper rail, and until recently was considered a subspecies. It has a long, downward curving bill and is grayish brown with a pale chestnut breast and conspicuous whitish rump patch. The population levels of Ridgway’s rail are precariously low due to destruction of its coastal and estuarine marshland habitat by […]