Population status

Red-naped Sapsucker
(Sphyrapicus nuchalis)

The Breeding Bird Survey (BBS) provides the best information on Red-naped Sapsucker trends in Canada. The species' population fluctuates among years but, overall, has increased by about 70% in Canada since 1970. At the regional level, Bird Conservation Regions with reliable BBS trends show contrasting results, with a decrease in abundance of about 36% in the Great Basin BCR, and a greater than 100% increase in the Northern Rockies BCR. BBS results from throughout the species' breeding range in North America (about half of which is in the United States) suggest a moderate increase in the continental population. The Red-naped Sapsucker is at an acceptable level relative to its national population goal (see BBS 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

• Walters, E.L., H.M. Edward, and P.E. Lowther. 2014. Red-naped Sapsucker (Sphyrapicus nuchalis), The Birds of North America Online (P.G. Rodewald, ed.). Cornell Lab of Ornithology, Ithaca, New York, USA. Walters, E.L., H.M. Edward, and P.E. Lowther. 2014. Red-naped Sapsucker (Sphyrapicus nuchalis), The Birds of North America Online (P.G. Rodewald, ed.). Cornell Lab of Ornithology, Ithaca, New York, USA. (Link)