Vol. XX 

 1903 



n Grinnell and Daggett, Birds of Coronados /s/<uids. 'l 2 



more or less helpless state. One nest contained two young about half 

 grown. On being approached thej tumbled out precipitately, falling all 

 in a heap. Thej soon righted themselves, however, and regained their 

 wonted composure with a ludicrous expression of gravity. 



10. Heteractitis incanus. Wandering Tatler. — A lone individual 

 was observed on August 6, at the edge of the surf on Middle Island. 



11. Actitis macularia. Spotted Sandpiper. — Tw-o individuals \\ere 

 seen on South Island on August 6. They were feeding along the rocks 

 at the water's edge. 



12. Numenius hudsonicus. Hudsonian Curlew. — Two were noted 

 flying over South Island on August 7. 



13. Arenaria melanocephala. Black Turnstone. — About a dozen 

 were seen about Middle Island on the rocks at the edge of tFie surf. 



14. Haematopus frazari. Frazar Oystercatcher. — One was seen on 

 North Island and another secured from Middle Island. This specimen is 

 a male in adult plumage and bears out well the characters assigned to this 

 form by Mr. Brewster. 



15. Haematopus bachmani. Black Oystercatcher. — Several pairs 

 of this species were seen about Middle and North Islands, all adults, but 

 from their anxious behavior we judged there must be ^oung about. As 

 we approached the former island two Black and a Frazar Oystercatcher 

 came out circling together around our skiff with the usual loud cries. 



16. Haliaeetus leucocephalus leucocephalus. Bald Eagle. — One was 

 seen at South Island. We were told that a pair had, a nest there. 



17. Falco anatum anatum. Duck Hawk. — Duck [Hawks were seen 

 flying over North and Middle Islands. On the highest ridge of the latter 

 were many remains of gulls for which we thought Duck Hawks might be 

 accountable. In several cases the skins of the victims were neatly turned 

 inside out over the head leaving the attached skeleton picked clean. 



18. Corvus corax sinuatus. American Raven. — A raven was seen 

 flying over Middle Island, and another near the cove on South Island. 



19. Salpinctes obsoletus. Rock Wren. — Rock Wrens were observed 

 on each of the three islands visited. They seemed to be most numerous 

 on North Island where they were seen skipping about among the nests in 

 the old pelican rookery, as well as along the stoney ridges. The specimens 

 secured are all in worn juvenal plumage, or else in the midst of the 

 annual moult. No differences are evident to distinguish these from main- 

 land examples. 



20. Carpodacus dementis. San Clemente House Finch. — House 

 Finches were fairly common on South Island, and perhaps twenty were 

 seen on Middle Island. But on North Island only a single individual was 

 discovered, though the vegetation and general conditions on the thiee 

 islands appeared about the same. On Middle Island, on August 6, a nest 

 w-as found in a ledge of rock overhanging the petrel grounds. The for- 

 mation was a sort of conglomerate, showing many holes where smooth 

 cobble-stones had fallen out. In one of these natural cavities, ten feet 



