Palm Warbler

The palm warbler (Setophaga palmarum) is a small songbird in the New World warbler family. == Description == Measurements: Length: 12–14 cm (4.7–5.5 in) Wingspan: 20–21 cm (7.9–8.3 in) Weight: 8.5–14.2 g (0.30–0.50 oz) == Taxonomy == The species comprises two subspecies, with fairly extensive intergradation and mixing where they meet. S. p. palmarum ("brown palm warbler" or "western palm warbler") inhabits the western two-thirds of the breeding range, and migrates southeast to winter on the Atlantic coast from Delaware to Florida (with a few on the Gulf coast west to Louisiana). It has much less yellow below, with less colorful streaking, and cold grayish-brown upper parts. S. p. hypochrysea ("yellow palm warbler" or "eastern palm warbler") of the eastern third of the breeding range, and migrates southwest to winter on the Gulf coast from western Florida to Texas; it migrates later in the fall than its western counterpart. It has brownish-olive upper parts and thoroughly yellow underparts with bold rufous breast and flank streaking. == Distribution == Palm warblers breed in open coniferous bogs and edge east of the Continental Divide, across Canada and the northeastern United States. These birds migrate to the southeastern United States, the Yucatán Peninsula…