New World Warblers (Parulidae)
Black-throated Blue Warbler (Dendroica caerulescens) - HBW 15, p. 747
French: Paruline bleue
German: Blaurücken-Waldsänger
Spanish: Reinita Azulada
Taxonomy: Motacilla caerulescens J. F. Gmelin, 1789, Santo Domingo, Dominican Republic.
One record of hybridization, probably with D. petechia. Validity of race cairnsi has been questioned, both by earlier ornithologists and by more recent ones, on the basis that, in males at least, differences from nominate are not constant (cairnsi-type males occur in nominate population, and vice versa); further research required. Two subspecies tentatively recognized.
Subspecies and Distribution:
- caerulescens ( J. F. Gmelin, 1789) - breeds in S Canada from Saskatchewan (irregular) and S Ontario E to Nova Scotia and in NE USA from Minnesota E to New England; migrates to Caribbean (mainly Bahamas and Greater Antilles), small numbers to E Middle America.
- cairnsi Coues, 1897 - breeds E USA in Appalachians from SW Pennsylvania S to N Georgia; migrates to Caribbean, some to E Middle America.
- Least Concern Enlarge map
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A male in breeding plumage perched and then feeding Locality El Yarey, Jiguaní, Granma Province, Cuba
Joe Angseesing 26 March 2007 4 years ago 44 sec 4.5 -
A male singing in a tree Locality Garrett State Forest, Garrett County, Maryland, USA (United States) (ssp caerulescens)
Robert Schaefer 23 May 2007 5 years ago 26 sec 4.1 -
Female feeding on ground Locality La Belén Reserve, Camagüey Province, Cuba (ssp ?)
Desmond Allen 5 March 2013 6 weeks ago 37 sec 4 -
Female taking a bath. Locality Rocklands Bird Sanctuary, Anchovy, Cornwall County, Jamaica
Ken Simonite 8 January 2012 1 year ago 11 sec 4 -
A male singing in a tree Locality Garrett State Forest, Garrett County, Maryland, USA (United States) (ssp caerulescens)
Robert Schaefer 23 May 2007 5 years ago 22 sec 4 -
Male taking fruit from a feeding tray Locality El Yarey, Jiguaní, Granma Province, Cuba
Joe Angseesing 26 March 2007 4 years ago 44 sec 3.8
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First year bird feeding on insect on tree.
Locality Cape May, Cape May County, New Jersey, USA (United States)
Kees Scharringa 5 October 2012 29 weeks ago 4.3 -
On a branch
Locality Montmagny, Quebec, Canada
Guy Poisson 6 September 2010 2 years ago 4.2 -
Male perching
Locality Mount Auburn Cemetery, Middlesex County, Massachusetts, USA (United States)
Roger Brissenden 21 May 2011 2 years ago 3.8 -
On a trunk
Locality Quebec City, Quebec, Canada
Guy Poisson 23 May 2007 2 years ago 3.7 -
Foraging in the mid-story.
Locality Bluefields Mountains, Cornwall County, Jamaica
Ken Simonite 6 January 2012 1 year ago 3.7 -
A perched male.
Locality Rocklands Bird Sanctuary, Anchovy, Cornwall County, Jamaica
Ken Havard 8 March 2012 1 year ago 3.5
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Song of a male during migration Locality Cumming, Forsyth County, Georgia, USA (United States)
Stuart Fisher 23 April 2011 2 years ago 3.5
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