Principe White-eye

Peak-headed diving duck. Males have black breast, finely-barred gray back, whitish sides (often slightly dusty-looking), and yellow eye. Head appears black with a purplish or greenish sheen in good light. Females are brown overall with white patch at base of bill and yellow eye. Very similar to Greater Scaup; note Lesser’s peaked head shape with angle near the rear of crown, slimmer cheeks, less extensive white stripe on wing in flight, and smaller, narrower bill. Also similar to Ring-necked Duck, but Lesser Scaup has grayer back and whiter sides. Usually in flocks or pairs on a variety of wetland habitats, from small ponds to large lakes and bays. Slightly more likely to be seen on smaller bodies of water, especially fresh water, than Greater Scaup, but much overlap. Frequently in mixed flocks with other Aythya ducks. Widespread across North America, with more southerly range extent than Greater Scaup, regularly reaching northern South America.

Plumage relatively dull and dark: grayish brown to grayish above with weak darker streaking; dingy whitish below with heavy and rather blurry dark streaking. Also note the dark legs (pink on smaller and buffier Meadow Pipit, which often occurs in coastal grassland adjacent to Rock Pipits). Song is a bland, repetitive, high-pitched series, often accelerating towards the end. Call a high, lisping, slightly harsh "ssiip", very similar to that of Water Pipit. Like other pipits, walks strongly and often pumps its tail a little. Found along rocky coasts; infrequent inland. Often seen on rocks and adjacent areas with short grass.

Very large for a hummingbird; size alone separates from many other species. Males are green overall with darker blackish chest and belly. Head appears black until it hits the light and reveals an iridescent purple crown and green throat. Females duller with grayish belly, mottled greenish sides, and speckled gray throat. Separate from Blue-throated Mountain-gem by longer bill, more speckled appearance on underparts, and smaller white tail corners. Used to be called Magnificent Hummingbird, but recently split into Rivoli’s Hummingbird (from southwest U.S. to Nicaragua) and Talamanca Hummingbird (found in mossy cloud forest in Costa Rica and Panama). Visits hummingbird feeders.