Nava's Wren

Stout shorebird with a stubby bill. Note orange legs, often bright on spring adults. Breeding plumage has bold black-and-white head and breast pattern; nonbreeding has subdued and browner pattern. Bill is bright orange with a dark tip when breeding, dark otherwise. In flight shows bold white wing stripe. Mellow whistled “poo-ee” call quite distinct from call of more slender and "spectacled" Little Ringed Plover. Breeds on sandy and stony substrates from beaches and lakeshores to moorland above treeline. Winters coastally, where often roosts with other small waders such as Dunlin.

Large, long-necked grebe with very long, thin, yellow bill. Black cap extends below red eye, sometimes with just a small white spot in front of the eye. Long, gray body rides low in the water. Breeds on marshy lakes, where it builds a floating nest of vegetation. Mostly found on saltwater bays and open ocean in winter, but also lakes. Very similar to Clark’s Grebe, with extensive range overlap and often in mixed flocks. Typically outnumbers Clark’s where they occur together. Western looks darker overall, especially on the sides and face. Also look at the bill: duller yellow on Western, often with a slight greenish tinge, and with a dark lower edge. Some birds appear intermediate and should be left unidentified.

A small swallow usually seen flying low over open and semiopen areas near water. Glossy blue-green above and white below. Note the white forehead and rump. Similar to White-winged Swallow, but lacks white in wings (although juvenile White-winged can show limited white). Told from Chilean Swallow by the presence of a white forehead.