Identification
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Small short-tailed warbler; bright and boldly patterned. Blue-gray above with green back, two bold white wingbars (limited white in Middle American birds), and yellow-orange throat and chest. Males have darker face and brighter yellow-orange chest than females. Bill is sharp, black above and yellow below. Very similar to Northern Parula; note lack of white eyearcs and no dark markings on breast. Beware of rarely-occurring hybrids and some dull immatures, which can be very similar to Northern Parula. Common and widespread in forests throughout Central and South America; rare in U.S.; found only in mossy forests in southern Texas.
Relative Size
About the same size as a Bananaquit.


Measurements
- Both Sexes
- Length: 4.3-4.5 in (10.8-11.4 cm)
- Weight: 0.2-0.3 oz (6.5-8 g)
Regional Differences
Ornithologists recognize seven Tropical Parula subspecies groups: the “Northeast Mexico” group, which stretches from northeastern Mexico into southern Texas; the “West Mexico” group, found in Mexico’s Sierra Madre Occidental; the widespread “Middle American” group, occurring from southern Mexico to northwestern Colombia; the “South American” group covering most of that continent; and three groups largely or entirely restricted to islands: the “Tres Marias Islands,” “Socorro Island,” and “Coiba Island” groups. The Tropical Parula subspecies groups differ in the extent and intensity of the yellow-orange underparts, upperpart color (gray to blue), the number of white wingbars (zero, one, or two), and tail length.