Canada warbler [SEP] IUCN conservation status
, with the greatest declines in the Northeast. The species has been assessed as "threatened" by the Committee on the Status of Endangered Wildlife in Canada. The IUCN, however, ranks the Canada warbler as a species of least concern.
The Canada warbler is protected at the federal level in both Canada and the United States.
In art.
John James Audubon illustrates the Canada warbler in Birds of America (published, London 1827-38) as Plate 73 entitled "Bonaparte's Flycatching-Warbler—"Muscicapa bonapartii"
the Maricao State Forest. An IUCN assessment of the elfin woods warbler, prepared in 2000, estimated a stable population of 600 mature individuals. More recently the population has been estimated to comprise at least 1800 mature individuals, a figure which equates to at least 2700 individual birds.
Status and conservation Threats.
The survival of the elfin woods warbler faces two main threats, predation and the destruction or alteration of suitable habitat. Confirmed native predators are the pearly-eyed thrasher ("Margarops fuscatus"), the Puerto Rican