White-faced Ibis

Identificazione

The white-faced ibis is very similar to the glossy ibis in its non-breeding plumages, but it tends to be slightly smaller and the plumage color is somewhat warmer. Breeding adults have a pink, bare face bordered with white feathers (rather than a bluish bare face with no bordering feathers), a grey bill, and brighter-colored, redder legs. Adults have red eyes year-round, whereas glossy ibises have dark eyes. Juveniles of the two species are nearly identical.<p>Measurements:

Tassonomia

Genere: Plegadis; famiglia: Threskiornithidae; ordine: Pelecaniformes.

Nome scientifico

Plegadis chihi

Autorità

(Vieillot, 1817)

Ordine

Pelecaniformi

Famiglia

Threskiornithidae

Genere

Plegadis

Areale e habitat

The white-faced ibis occurs in Canada, the United States, and Central America, and a second subspecies inhabits the southern half of South America, east of the Andes Mountains. In 2012, the total population size was estimated to be 1.2 million individuals, and increasing. The IUCN rates it as being of Least Concern.<p>Migration and interchange between North and South American subspecies does not occur. Within North America, birds breeding in northern areas of the range move south to wintering areas. For example, breeders in northern California and southern Oregon move to wintering areas in southern California and México or Central America. Some birds breeding in Yellowstone in Wyoming will overwinter in areas such as Texas and coastal Gulf of Mexico regions.

Migrazione

Migratori completi

Comportamento

Comportamento migratorio: Migratori completi.

Conservazione

Tendenza della popolazione: in aumento.

Tendenza della popolazione

in aumento