Table extinct and Critically Endangered (Possibly Extinct) avian taxa

Download 0.51 Mb. Page 6/6 Date 10.08.2017 Size 0.51 Mb. #29426

Fringillidae cont.

Black Mamo Drepanis funerea	Hawaiian Is, USA	1928 (1907–1949)	It was last collected in 1907 on Lana‘i. Searches since then failed to find it, and it was considered extinct by 1949 (BirdLife International 2011).	EX
	Laysan Honeycreeper Himatione sanguinea freethii	Hawaiian Is, USA	1923	Three were seen by Wetmore when he arrived on Laysan in 1923 (Munro 1960). This is widely accepted as the date of extinction, as the birds were not seen following a sandstorm later that year, and have never been seen since (E. VanderWerfin litt. 2011).	LC / EX
	Poo-uli Melamprosops phaeosoma	Hawaiian Is, USA	2004	One of the last three known individuals in the wild was taken into care in September 2004, but it died in November 2004. The other two birds hadnot been seen on Maui since December 2003 and February 2004 respectively (BirdLife International 2011).	CR(PE)
Parulidae	Bachman's Warbler Vermivora bachmanii	S USA	1967 (1958–1975)	The last confirmed records came from near Charleston, South Carolina in 1958-1961. Specific searches in 1975-1979 failed to find the species (Hamel 2011), but there have been unconfirmed reports since and it is best treated as Critically Endangered (Possibly Extinct) until its entire potential habitat has been surveyed (BirdLife International 2011).	CR(PE)
Icteridae	Grand Cayman Oriole Icterus leucopteryx bairdi	Grand Cayman, Cayman Islands	1967	This taxon was last seen in 1967 and has since been extirpated (Bradley 2000).	LC / EX
	Slender-billed Grackle Quiscalus palustris	Rio Lerma, Mexico	1910	The species was last recorded in 1910, and presumably became extinct soon after (BirdLife International 2011).	EX
Emberizidae	Santa Barbara Song Sparrow Melospiza melodia graminea	Santa Barbara I, USA	1965 (1960–1970)	The taxon became extinct in the 1960s (Fuller 2000).	LC / EX
	Dusky Seaside Sparrow Ammodramus maritimus nigrescens	SE USA	1980	The last wild record was in 1980 (Walters 1992).	LC / EX
	Todos Santos Rufous-sided Sparrow Aimophila ruficeps sanctorum	Todos Santos Is, Mexico	1953 (1928–1977)	The taxon was once a common breeder on the islands (Grinnell 1928), but was not found during several visits in the late 1970s (Wilbur 1987) and does not appear to have been seen since, so it has probably gone extinct. Further surveys are required to confirm this however, and the taxon is best considered Critically Endangered (Possibly Extinct).	LC / CR(PE)
	Hooded Seedeater Sporophila melanops	Brazil	1916 (1823–2008)	The species is only known from the type, which was collected in 1823 on the banks of Rio Araguaia. Searches of the river's floodplain in 2008 and 2009 found no evidence of the species, but more comprehensive surveys would be required to confirm its extinction and so it is best considered Critically Endangered (Possibly Extinct) (BirdLife International 2011).	CR(PE)
	St Kitts Bullfinch Loxigilla portoricensis grandis	St Kitts	1880	The taxon was common in the forests of Mt Misery in 1880 (Bond 1956), but has since gone extinct.	LC / EX
	Guadalupe Spotted Towhee Pipilo maculatus consobrinus	Guadalupe, Mexico	1897	It was found by Palmer in 1875 (Thayer and Bangs 1908), but not by an expedition in 1897 or in any subsequent work (Kaeding 1905).	LC / EX
Thraupidae	Samana Eastern Chat Tanager Calyptophilus frugivorus frugivorus	Samaná, Dominican Republic	1987 (1982–1992)	The taxon has not been reliably recorded since 1982 (Raffaele et al. 1998). Concerted efforts to find it have been unsuccessful (Dod 1992) and the subspecies is believed to be extinct (Keith et al. 2003).	VU / EX
Thraupidae cont.	Gonave Eastern Chat Tanager Calyptophilus frugivorus abbotti	Gonâve I, Haiti	1991 (1977–2006)	Last recorded in 1977, and was not recorded in recent searches (Latta et al. 2006). However, Gonâve is not thought to have been comprehensively surveyed (D.C. Wege in litt. 2011) and until it has been the taxon is best considered Critically Endangered (Possibly Extinct).	VU / CR(PE)

¹Minimum date = date of last record. Maximum date = date of the first unsuccessful survey of the taxon’s range. The estimated extinction dateis taken as the mid-point of the minimum and maximum (where available)

²Where BirdLife International (2011) is listed, see this source for primary references

³Species status = 2011 IUCN Red List category; subspecies status = our assessment, where EX = Extinct, EW = Extinct in the Wild, and CR(PE) = Critically Endangered (Possibly Extinct)

Download 0.51 Mb.

Share with your friends: