Note longer primary projection than any other Empidonax in CR. Has narrow eye ring, olive upperparts, whitish throat, olive wash on breast- whitish middle of breast, and pale yellow on rest of undeiparts. fairly common passage migrant, from mid-Sept to early Nov and from early March to mid-May; uncommon winter resident, from mid-Sept to mid-May; mostly in Caribbean lowlands, but possible elsewhere, to 1,200 m. Most likely in understory of forests and at forest edges, in dense vegetation. Irs note is a loud, squeaky psei'ip. 6" (15 cm).