Population status

Cape May Warbler
(Setophaga tigrina)

The Breeding Bird Survey (BBS) provides the best national coverage for this species, although the northern portion of the breeding population is not well covered. The BBS results suggest an overall increase in abundance of Cape May Warblers in Canada. Despite annual fluctuations, the population remained relatively stable until about 2000; since then it has increased steadily. The Cape May Warbler is at an acceptable level relative to its national population goal (see Canada graph below).

Population goal and acceptable levels of variation

Breeding Bird Survey (BBS) - Canadian analysis

Additional information on: Breeding Bird Survey (BBS) - Canadian analysis

References

• Baltz, M.E. and S.C. Latta. 1998. Cape May Warbler (Dendroica tigrina), The Birds of North America Online (A. Poole, Ed.). Cornell Lab of Ornithology, Ithaca, New York. Baltz, M.E. and S.C. Latta. 1998. Cape May Warbler (Dendroica tigrina), The Birds of North America Online (A. Poole, Ed.). Cornell Lab of Ornithology, Ithaca, New York. (Link)
• Venier, L.A., J.L. Pearce, D.R. Fillman, D.K. McNicol and D.A. Welsh. 2009. Effects of Spruce Budworm (Choristoneura fumiferana (Clem.)) Outbreaks on Boreal Mixed-Wood Bird Communities. Avian Conservation and Ecology - Écologie et conservation des oiseaux 4(1): 3. Venier, L.A., J.L. Pearce, D.R. Fillman, D.K. McNicol and D.A. Welsh. 2009. Effects of Spruce Budworm (Choristoneura fumiferana (Clem.)) Outbreaks on Boreal Mixed-Wood Bird Communities. Avian Conservation and Ecology - Écologie et conservation des oiseaux 4(1): 3. (Link)