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. 2018 Jan 29;6:e4319. doi: 10.7717/peerj.4319

Figure 1. Long-term population trends for Golden-winged Warblers by region and globally from the Breeding Bird Survey.

Figure 1

Trends in Golden-winged Warbler counts along routes sampled during the Breeding Bird Survey (Sauer et al., 2014) from 1966–2013. Modeled numbers of birds per BBS survey route (open circles) and 95% credible intervals are displayed for (A) the global population, (B) the Appalachian breeding distribution segment, which comprises <5% of the global population, and (C) the Minnesota breeding population, which comprises ∼50% of the global population. Urgent calls for Golden-winged Warbler conservation action often cite the global trend (A), which has stabilized in recent years because western populations remain stationary or increasing and the influence of the Appalachian population on global trends has decreased as that population asymptotes toward zero.