B. Hamilton 1967 Journal 18 July Virril Estuary 35 km SSE at Sechura, Dpto. Piura, 50' Another long term shot the size of the Ball-tailed Tern was also observed. About 500 Cormorant were present. Most were resting on a mud flat but just 100 were fishing in a less flood prone estuary. They were Olivaceus (Cormorant), Phalacrocorax olivaceus. Also scattered in the area many Chilean Flamingo, Phoenicopterus chilensis. There were of two color and perhaps more as they gave no clue four species were present. The flamingos were mostly feeding a great distance away from highway toward ocean. Few boobies were seen resting on land along with Cormorants. There were Blue-footed Boobies, Sula nebouxii and one in Peruvian Booby, Sula variegata. Brown Pelican also seen present in this Pelecanus occidentalis. Many shorebirds were observed but none were present in large numbers (at least near highway). Observed was American Oystercatcher (4), Haematopus palliatus. Black-tailed Plover Pluvialis squatarola, Semipalmated Plover (8), Charadrius semipalmatus, Snowy Plover (?) (8) Charadrius alexandrinus, Killdeer (1) Charadrius vociferus, Paddy Tatterson (20) Arenaria interpres, Lesser Yellowlegs, Tringa flavipes, Greater Yellowlegs (3), Tringa melanoleuca, Willet (15') Ectoptrophorus semipalmatus, Least Sandpiper, Calidris minutilla [C2] collected two]. Sanderling (20) Calidris alba, Whimbrel (1) Numenius phaeopus Long-billed Dowitcher (6 - on in summer plumage.) (?) Limnodromus scolopaceus Common Stilt (1), Himantopus himantopus. Many Snowy Egrets Egretta thula and one Great Egret, Casmerodius albus were seen. Mostly the Sandpiper was observed in winter plumage. The water did not appear to be very deep. The west bank appears to be mostly sand and the east bank was mostly mud