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SHOVELLER (Spatula clypeata). Thirteen (two females) with 
pintails. 
CANVASBACK (Nyroca valisineria). Two pairs with pintails. 
LESSER SCAUP DUCK (Nyroca affinis). Three seen on June 15 
on coastal lagoon near Horsehead Island. 
MASKED Duck (Nomonyx dominicus). One pair staying at a 
resaca south of Harlingen. 
MEXICAN TURKEY VULTURE (Cathartes aura aura). Rather com- 
mon; seen less frequently than the following. This form has recently 
been recorded from Cameron County by Brandt (1986, p. 325) and 
Brewster County by Van Tyne and Sutton (19387, p. 16). Dr. Ober- 
holser writes that the northern limits of the range of aura, though 
not definitely known, are approximately southern and central western 
Texas to southern Arizona. 
BLACK VULTURE (Coragyps atratus atratus). Common. 
TEXAS RED-SHOULDERED HAWK (Buteo lineatus texanus). Ob- 
served June 10 and 11 at Mission and June 13 at Harlingen. Ap- 
parently one of the common hawks. 
SWAINSON’S HAWK (Buteo swainsonit). One noted south of 
Laredo on June 9. 
SENNETT’S WHITE-TAILED HAWK~ (Buteo albicaudatus hypos- 
podius). One noted at Zapata on June 9. 
HARRIS’S HAWK (Parabuteo unicinctus harrisi). Rather com- 
mon. Nest at Laredo at the top of a large mesquite tree; it con- 
tained one downy young June &. 
AUDUBON’S CARACARA (Polyborus cheriway auduboni). Seen 
June 11 at Mission and June 12 at Harlingen. 
CHACHALACA (Ortalis vetula vetula). Common in a large, virgin 
tract of mesquite and cactus (Adams tract) southwest of Harlingen, 
where on June 12 six pairs were observed and heard, all perched near 
or at the top of taller trees and performing the vocal duets character- 
istic of the mating season well described by Pearson (1921, p. 518). 
TEXAS BOB-WHITE (Colinus virginianus texanus). Common. 
CHESTNUT-BELLIED SCALED QUAIL (Callipepla squamata castano- 
gastris). Observed only at Laredo on June 8, where they appear to 
be fairly common. 
PURPLE GALLINULE (lonornis martinica). Apparently uncommon 
and very local in distribution. Six seen June 14 on a small resaca 
south of Harlingen. 
FLORIDA GALLINULE (Gallinula chloropus cachinnaus). A few 
found at most every resaca visited. 
AMERICAN Coot (Fulica americana americana). Observed June 
12 at Harlingen; June 18 a flock of approximately 100 on a prairie 
pond along the Boca Chica-Brownsville road. 
WILSON’S PLOVER (Pagolla wilsonia wilsonia). Common on the 
coastal prairies. Young perhaps a week old observed with adults 
June 13. 
