A lively small inhabitant of pine woodlands, typically found fairly high in trees. Similar to Bahama Warbler and Yellow-throated Warbler at first glance, but Olive-capped Warbler has a bright yellow-olive forehead and lacks the bold white eyebrow of those species. Also distinctive is the Olive-capped's dense, dark streaking that is restricted to the sides of the lowermost chest. Its song consists of several sweet notes on one pitch followed by several at a lower pitch; sometimes ending with a single note on original pitch. Call notes include one that is high and sharp and another that is sweet and slightly squeaky.