Birds include tanagers, wrens, and chickadees. Birds such as grosbeaks, flycatchers, western tanagers, and lazuli buntings are common in the area. They include tanagers, rheas, tinamous, curassows, antbirds, ovenbirds, and toucans. Accipiter hawks (Accipitrinae) and jays (Corvidae) are major predators of western tanagers. Scarlet tanagers also take snails, earthworms, and spiders. In winter, scarlet tanagers occur in the montane forest of the Andean foothills. Immature western tanagers initiate migration later than adult birds. Although western tanagers forage in many habitats, they are typically observed foraging in forest canopies. Male scarlet tanagers reach their breeding ground from mid-May to early June. This makes the larvae unpalatable to certain bird species, especially tanagers. Scarlet tanagers can range in length from and from in wingspan. Western tanagers migrate alone or in groups of up to 30 birds. Tanagers are small to medium-sized birds. Most tanagers build cup nests on branches in trees. Western tanagers do not typically occur in the Caribbean lowlands.