Male Incubation in Wilson’s Plover (Charadrius wilsonia) Author(s): PETER W. BERGSTROM Male incubation, defined as exclusive incubation by the male, is thought to be a necessary step in the evolution of polyandry from monogamy in birds. When...
The status of the Gray Hawk in New Mexico Author(s): JOHN P. HUBBARD On 23 April 1876, near Fort Bayard, Grant County, New Mexico, Frank Stephens collected two sets of eggs that he identified as those of the Gray Hawk (Buteo nitidus). Through the...
The Slate-colored Seedeater (Sporophila schistacea): a bamboo specialist? Author(s) Diane L Neudorf & Paul J. Blanchfield The idea of constant density and stable territoriality found in some tropical birds (Greenberg & Gradwohl1986) does not...
Ecological relationships between feather mites (Acari) and wild birds of Emberizidae (Aves) in a fragment of Atlantic Forest in northeastern Brazil Author(s): Rachel M. de Lyra-Neves Angela M. Isidro de Farias & Wallace R. Telino-Junior The...
Worldwide Species Action Plans SAP: Brown Teal (Anas chlorotis) 2007 Language: EN Origin: New Zealand The pateke/brown teal (Anas chlorotis) was formerly widespread and commonin lowland habitats throughout New Zealand. However, it is now...
Worldwide Species Action Plans SAP: Great Spotted Kiwi (Apteryx haastii) 2008 Language: EN Origin: New Zealand Kiwi (Apteryx spp.) are among the most distinctive, recognised and cherishedanimals in New Zealand. Endemic to New Zealand, they are the...
Nomenclature of the Black-Bellied Whistling-Duck Author(s): Richard C. Banks There are two distinguishable subspecies of the Black-bellied Whistling-Duck, one in South America to eastern Panama and one from western Panama through Central America to...
Extinction criteria of IUCN In the latest assessment in 2008, 1,226 species are considered threatened with extinction (i.e. in the categories of Critically Endangered, Endangered, Vulnerable and Extinct in the Wild). This represents 12.4% of the...
Molecular markers for population genetic analyses in the family Psittacidae (Psittaciformes, Aves) Author(s): Patrícia J. Faria and Cristina Y. Miyaki The selection of molecular markers for population studies is an important tool for biodiversity...
Worldwide Species Action Plans SAP: Hooded Dotterel (Thinornis rubricollis) 2007 Language: EN Origin: New Zealand There are about 3,000 Hooded Plovers in eastern Australia and 4,000 in the west (Garnett and Crowley2000). The total population in...