Morphometrics of nesting Prothonotary Warblers at Tishomingo National Wildlife Refuge, Oklahoma

Abstract

Abstract–We measured morphometric data of adult female and male Prothonotary Warblers (Protonotaria citrea) from 2008-2011 at the Tishomingo National Wildlife Refuge in south-central Oklahoma. Males had longer wing and tail lengths; however, females had greater body mass. Adult warblers (± 2 years old) tended to have longer wing and tail lengths than second year warblers (< 2 years old). Although most statistical tests were not significant, significant results should be interpreted with caution due to small sample sizes. No differences were found among age classes for body mass. Morphometric results correspond to previously published ranges for Prothonotary Warblers across the species’ range.