Shear-tailed Gray Tyrant

Plain olive-green above and whitish below with no wingbars. Variable amount of yellow on underparts, sometimes bright lemon on undertail coverts and flanks. Dark stripe through and above eye. Thicker bill than warblers, body about the same size. Widespread through South America, mainly in lowlands but also up into foothills. Very similar to Red-eyed Vireo, best distinguished by voice.

The male is an unusual and beautiful starling that is glossy blue-black with a broad white collar. Females are duller, gray with paler mottling on the underparts. Both sexes have a yellow-orange eye. Found locally in savanna, montane grassland, and areas with a mix of savanna and forest. Often in small flocks, sometimes mixed with other starling species. The male is unmistakable; the female might be confused with other starlings, but is identified by the gray plumage without gloss, the short tail, and the yellow-orange eye. The calls include chirps and short whistles. 

A very widespread small heron, common across much of the globe. Small size and overall gray color separates from most other herons and bitterns. Look for contrasting dark cap, distinct pale edges on wing feathers, and white and rufous stripes on front of neck. Juvenile streakier below than adult. Similar to Green Heron but note mostly gray neck with restricted rufous. Juvenile is much smaller and more slender than juvenile Black-crowned Night-Heron, with long streaks on the chest and spotting restricted to the wings. Normally solitary, found standing quietly around wetland habitats such as marshes, agricultural fields, rivers, and lakes.