FAMILY CHARADRIIDAE 383 



4. Breast with two prominent black bands. 



Killdeer, Charadrius vocijerus, p. 390 

 Breast with a single black or grayish-brown band 5 



5. Bill entirely black, strong and heavy, 19 mm. long or more. 



Wilson's plover, Charadrius wilsonia, p. 391 

 Bill with orange or yellow at the base, short and more slender 6 



6. Larger, wing more than 114 mm.; dark brownish gray above; a distinct 



web between the outer and middle toes. 



Semipalmated plover, Charadrius semipalmatus, p. 386 



Smaller, wing less than 105 mm. ; light brown above ; no web at base of 



toes Collared plover, Charadrius collaris, p. 387 



BELONOPTERUS CHILENSIS CAYENNENSIS (Gmelin): Southern 

 Lapwing; Teru-teru 



Parra cayennensis Gmelin, Syst. Nat., vol. 1, pt. 2, 1789, p. 706. (Cayenne.) 



A large plover, with a long, slender crest. 



Description. — Length, 290 to 330 mm. Bend of the wing armed 

 with a strong, curved, sharply pointed spur. Adult (sexes alike), 

 forehead, crest, throat, center of upper foreneck, and breast black, 

 with a faint bluish sheen ; a narrow line across the back of the fore- 

 head, and on the anterior area of the cheeks, dull white; rest of 

 crown grayish brown; rest of head and neck dull buffy gray; back 

 dull greenish gray with a bronzy area on either side; upper tail 

 coverts white; lesser wing coverts, alula, primaries, and outer sec- 

 ondaries black ; middle and greater wing coverts white ; secondary 

 coverts and inner secondaries dull gray; tail black, with basal half 

 and tip white ; abdomen and sides white. 



Iris red; bill red on the basal half and black on the tip; tarsus and 

 toes dull red ; wing spur red. 



Measurements. — Males (5 from Colombia), wing 218-231 (224), 

 tail 92.2-103.0 (97.2), culmen from base 30.0-34.8 (32.7), tarsus 

 74.3-84.3 (80.8) mm. 



Females (5 from Colombia), wing 220-227 (223), tail 89.2-95.5 

 (92.7), culmen from base 32.6-34.4 (33.4), tarsus 73.0-78.0 (75.7) 

 mm. 



Casual visitor. Recorded from the eastern sector of the Province 

 of Panama (La Jagua, Chepo), and San Bias (Puerto Obaldia). 



This is a species of South America, found in open lands, that 

 ranges across Colombia to the lower Rio Atrato, and wanders oc- 

 casionally to eastern Panama. It was first recorded for the isthmus 

 when Karl Curtis shot one at La Jagua on May 17, 1936 (Griswold, 

 Auk, 1936, p. 457). Curtis informs me that about 1950, toward the 



