28 
THE CONDOR 
Vol. XVII 
13. Vermivora celata lutescens. Lutescent Warbler. On several differ- 
ent days throughout the spring and summer Lutescent Warblers were seen 
feeding in the thickets of salmon berry at various points on the island. During 
the early part of the season especially these were watched for a considerable 
time for indications of nest building or the presence of young birds, but the 
signs were never conclusive, though it is altogether possible that they actually 
do breed in the Forrester Island group. 
14. Wilsonia pusilla pileolata. Pileolated Warbler. On various occa- 
sions one or two Pileolated Warblers were seen in the dense thickets along the 
shore across the island from the camp, though there were no indications that 
they bred in the locality. 
15. N annus hiemalis pacificus. Western Winter Wren. These diminu- 
tive birds were almost as numerous as the Townsend Fox Sparrow, and were 
as widely distributed. No less than twenty nests were found throughout the 
spring and early summer located, in every instance, in cavities among the 
roots of upturned trees. 
16. Certhia familiaris occidentalis. Tawny Creeper. These birds are 
comparatively rare on Forrester Island, as a few individuals only were seen 
during the summer. Among these were two immature birds that were doubt- 
less hatched on the island though no nests were discovered. 
17. Sitta canadensis. Red-breasted Nuthatch. A single individual of 
this species was seen on the side of a spruce stub in the latter part of May. 
18. Penthestes rufescens rufescens. Chestnut-sided Chickadee. Small 
flocks of these birds were met with in various parts of the island from the first 
of June until August. There were no indications of pairing, however, or young- 
birds or any proof that they nest on the island. 
19. Regulus satrapa olivaceus. Western Golden-crowned Kinglet. This 
species is common throughout the main island. There are indications that it 
nests during the latter part of May and early June. 
20. Hylocichla ustulata ustulata. Russet-backed Thrush. Thrushes 
were common, especially about the camp where several nests were found dur- 
ing the month of June. 
21. Planesticus migratorius caurinus. Northwestern Robin. A few in- 
dividuals were seen during the summer, but there was no evidence to show 
that they nested. 
22. Ixoreus naevius naevius. Varied Thrush. Common throughout the 
main island. Several nests were found in June. 
Sea Birds. — Forrester Island is fully as secure a haven for the dozen or so 
species of water birds, which dwell upon its shores, as for the land birds. Cer- 
tain species are the prey of the duck hawk and the eagle, the fish crow carries 
off the eggs and young of those whose nests are exposed upon the cliffs, but 
the destruction is not especially serious, and on the other hand the food supply 
is abundant. Furthermore the wolf and fox, which on neighboring islands 
are responsible for the destruction of many species of birds, both land and ma- 
rine, are absent on Forrester, and in many respects the habitat is indeed most 
satisfactory. 
Only the birds that are actually known to nest on the island are described 
in the following list. The natives report a species of “duck” (their name for 
