Black-throated Blue Warbler

Setophaga caerulescens



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Figure 1. Breeding and wintering ranges of the Black-throated Blue Warbler.

See text for details.

Figure 2. Annual cycle of breeding, molt, and migration of the Black-throated Blue Warbler.

Figure depicts phenology for the northeastern United States. Thick lines show peak activity, thin lines off-peak activity.

Figure 3. Black-throated Blue Warbler foraging.

Black-throated Blue Warblers usually snatch their insect prey from a leaf, while hovering or flying past. Drawing by J. Zickefoose.

Figure 4. Black-throated Blue Warbler vocalizations.

Black-throated Blue Warbler vocalizations: (a) primary song type, with slurred upward ending; (b) second song type, with slurred notes (c) third song type, representing whistle-like notes (see text); (d) “aggressive” twittering/trill. a, b, and c recorded at Hubbard Brook Experimental Forest, Grafton Co., NH, 9 May 1991 by S. Burson. (d) Recorded in Erie Co., OH, 21 May 1969, courtesy of Borror Lab of Bioacoustics (#8999).

Figure 5. Relative abundance of Black-throated Blue Warbler during the breeding season.

Based on data from the North American Breeding Bird Survey, 2011–2015. See Sauer et al. (2017) for details.

Figure 6. Regional trends in Black-throated Blue Warbler breeding populations.

Based on data from the North American Breeding Bird Survey, 1966–2015 (Sauer et al. 2017). Data show estimates of annual population change over the range of the survey; areas of increase are shown in blue and declines are shown in red. See Sauer et al. (2017) for details.

Recommended Citation

Holmes, R. T., S. A. Kaiser, N. L. Rodenhouse, T. S. Sillett, M. S. Webster, P. Pyle, and M. A. Patten (2017). Black-throated Blue Warbler (Setophaga caerulescens), version 3.0. In The Birds of North America (P. G. Rodewald, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA.