FAMILY ANATIDAE 145 



Measurements (from Snyder and Lumsden, cit. supra, p. 12). — 

 Males (41 specimens), wing 176-194 (184.9), tail 64-77 (71.2), cul- 

 men 39-47 (43.9), tarsus 30-34 (32.2) mm. 



Females (personal records, 12 specimens), wing 172-181 (176.1), 

 tail 59.0-69.8 (64.5), culmen 40.8-44.1 (42.1), tarsus 31.0-32.1 (31.7) 

 mm. 



Winter visitor. Abundance not known. 



Griscom (Bull. Mus. Comp. Zool., vol. 78, 1935, p. 296) reported 

 it as "Canal Zone (1 shot)" without giving details as to the source 

 for his statement. The only definite occurrences are of 3 banded 

 birds, 2 from California and Utah killed at the Rio La Jagua January 

 20, 1955, and January 7, 1956, and one from Idaho, taken near 

 Chame November 8, 1957. Karl Curtis informs me that he shot one 

 at La Jagua in the month of June, which may have been a bird that 

 did not move northward in spring with the other ducks, but also 

 raises the interesting possibility that it may have been a wanderer 

 from one of the populations of this species found in South America. 



SPATULA CLYPEATA (Linnaeus): Shoveler; Pato Cuchara 



FiGtniE 26 



Atuis clypeata Linnaeus, Syst. Nat., ed. 10, vol. 1, 1758, p. 124. (Southern 

 Sweden.) 



Differs from all other ducks found in Panama in the form of the 

 bill, which is narrow at the base and much widened toward the tip. 



Description. — Length 460 to 510 mm. Male, head, neck, and back 

 black, the head with a sheen of green ; lateral tail feathers white, cen- 

 tral ones black; wing coverts light blue; speculum green, bordered 

 with white anteriorly; upper breast white; lower breast, sides, and 

 abdomen chestnut brown, with white on the flanks. 



Female, brown, mottled with buff; blue wing patch and broad bill 

 tip as in the male. 



Measurements. — Males (5 from eastern United States), wing 232- 

 239 (237), tail 76.0-85.4 (80.5), culmen 60.5-71.0 (66.9), tarsus 35.8- 

 40.7 (38.2) mm. 



Females (5 from eastern United States), wing 221-226 (223.2), 

 tail 74.6-88.7 (79.8), culmen 59.5-61.8 (60.5), tarsus 34.7-37.7 (36.1) 

 mm. 



Winter visitor. Tolerably common at times, but irregular in ap- 

 pearance. 



W. W. Brown, Jr., obtained a female at David, Chiriqui, October 

 16, 1900 (Bangs, Auk, 1901, p. 358 ; reported as from "Divala" by 

 Griscom, Bull. Mus. Comp. Zool., vol. 78, 1935, p. 297, through a 



