b1. A minute hind toe; axillars sooty black. ... Squatarola (p. 103) b2. No hind toe; axillars gray or white. ... Charadrius (p. 104) a2. Smaller; wing less than 165 mm.; upper parts nearly uniform gray or brown. b1. Larger; wing, 140 to 165 mm.; bill stouter. ... Ochthodromus (p. 105) b2. Smaller; wing, 100 to 115 mm.; bill more slender. ... Ægialitis (p. 109) Genus SQUATAROLA Leach, 1816. This genus is similar to Charadrius but differs in having a minute hind toe; the character is scarcely of generic value. 90. SQUATAROLA SQUATAROLA (Linnæus). GRAY PLOVER. Tringa squatarola Linnæus, Syst. Nat. ed. 10 (1758), 1, 149. Squatarola helvetica Sharpe, Cat. Birds Brit. Mus. (1896), 24, 182; Hand-List (1899), 1, 152; Oates, Cat. Birds' Eggs (1902), 2, 17; McGregor and Worcester, Hand-List (1906), 22. Bantayan (McGregor); Bohol (McGregor); Cebu (McGregor); Cuyo (Meyer); Luzon (Sanches); Mindanao (Everett); Negros (Layard); Palawan (Whitehead); Siquijor (Steere Exp., Bourns & Worcester, Celestino). Subarctic regions, south in winter to Australia, Cape of Good Hope, and South America. "Adult male in breeding plumage.--Above mottled with bars of black and ashy white, the feathers being black, notched with white and broadly tipped with the latter; scapulars and wing-coverts like back, the greater series edged externally with white, inner ones distinctly notched with white; alula and primary-coverts black, the former slightly, the latter more plainly, tipped with white; quills black, the shaft white about the middle; first two primaries white for the greater portion of the inner web, decreasing in extent on the succeeding quills, which also have the median portion of the shaft white, but after the fourth this white shaft accompanied by an increasing amount of white on outer web; secondaries brown, with white edges and tips, bases of inner webs also white; innermost secondaries resembling the back, and notched with ashy brown and blackish; lower back and rump dusky brown, with white spots and fringes to the feathers; upper tail-coverts and tail white, barred with black or blackish brown, the bars decreasing toward the outer feathers, where they are broken up into spots on the outer web; crown like the back, but more minutely mottled and more hoary white; forehead and a broad eyebrow white, extending down sides of neck, and forming a large patch on sides of upper breast; lores, sides of face, ear-coverts, and under surface black, excepting abdomen and under tail-coverts, which are pure white; thighs white, streaked with black; under wing-coverts white; axillars black, with slightly indicated fringes of brown at tips; quills below dusky, with white on inner webs; lower primary-coverts pale ashy. 'Bill, legs, feet, and claws black; iris dark hazel.' (Seebohm.) Length, 267; culmen, 33; wing, 206; tail, 74; tarsus, 46.