Mar., 1908 NOTES FROM SAN CLEMKNTE ISLAND 83 



plumage, i. e. with white filaments along the sides of head, neck and back, were 

 secured in February and March. Breeds in small numbers on the northwest coast. 



Phalacrocorax pelagicus resplendens. Baird Cormorant. A few pairs were 

 seen near Mosquito Harbor, during March. These were in breeding plumage 

 (white flank patches). One specimen in winter plumage, taken in October. 



Pelecanus calif ornicus. California Brown Pelican. Frequently seen near 

 northwest coast. Adults and immature specimens were secured. None were seen 

 during late March. 



Aythya affinis. I^esser Scaup Duck. Several ducks which I believe to be of 

 this species, were seen during February. In October several thousand ducks, of 

 several species, were reported off the northwest coast by fishermen. 



Ardea herodias. Great Blue Heron. Several pairs are resident on the Island. 



Jleteractitis incanus. Wandering Tattler. During October and March, Tattlers 

 were frequently observed feeding along the outlying rocks in the vicinity of Mos- 

 quito Harbor and Smugglers' Cove. In all, sixteen specimens were preserved. 



Actitis macularia. Spotted Sandpiper. Fairly common on both coasts during 

 fall and winter. 



jEgialitis nivosa. Snowy Plover. Flock of fifteen or twenty seen on the 

 sandy beach, Smugglers', October 15. 



Arenaria melanocephala. Black Turnstone. Several seen near Smugglers' in 

 October and April; twelve specimens were taken. 



Zenaidura macroura. Mourning Dove. Not uncommon in the vicinity of 

 Smugglers'. A few seen, in March, near Mosquito Harbor; very shy during that 

 month but later becoming quite tame, feeding in the grass near camp. Seen in 

 October. Breeds. 



Buteo borealis calurus. Western Red-tail. Several pairs were nesting on the 

 Island. 



Haliaeetus leucocephalus. Bald Eagle. Found nesting in the larger canyons, 

 one-fourth to one mile from the coast, during February, March and April. Sev- 

 eral nests were visited and two fresh sets of two eggs each taken, February 15, and 

 March 15. Scattered about the base of the cliffs in which the nests were situated, 

 were numerous skeletons of sheep and young lambs. 



Falco peregrinus anatum. Duck Hawk. One pair seen near the northwest 

 coast and another near Mosquito Harbor. One pair, at least, bred on the Island 

 this year. 



Falco sparverius. Sparrow Hawk. These trim little falcons were occasionally 

 seen hovering over the brushy mesas and cacti-covered hillsides of the northeast 

 coast, and inland. Only one specimen, a male, was secured. This differs some- 

 what in general coloration from specimens taken in the coast district of the main- 

 land, but the normal variation in the species is great. 



Pandion haliaetus carolinensis. American Osprey. During January and 

 February a number were seen. In March they were observed remodeling old nests 

 along the northeast coast and two fresh sets were found: March 9, one of three; 

 March 31, one of three. On April 2, I visited a colony of twelve or fourteen nests on 

 the southeast coast. Here, incubation ranged from fresh to two-thirds advanced. 

 One set of four eggs was secured, and another found; one egg of the latter set had 

 been ctowded out of the nest onto the rocks and broken. Nests varied in size 

 from a few sticks and pieces of sea-weed to immense piles of sticks and kelp four to 

 six feet in hight by three to five feet in diameter, cavity of the largest being 

 (diameter) twelve inches by (depth) four inches. The majority of nests were built 

 on columns of rock standing directly in the surf. 



