Woop—MersHoN EXPEDITION, CHARITY ISLANDS. 95 
duck hawk and often flew straight at and over the writer when in 
plain view. It also came to Light-House Point and often flew over 
our work camp. Only one of the birds seen (a male) was in the 
beautiful blue plumage, although one or two others seemed fully 
adult. On October 10, two of these birds were seen perched on 
dead trees not far apart, and seemed to be in company. They 
proved to be an adult male and female and were possibly a pair. 
55. (360) Falco sparverius sparverius. Sparrow Hawk.—The 
first sparrow hawk seen on the island was on August 22. Two 
others were noted on September 5 and 18, and on September 19 
three were seen flying about over the beach near the pond. The 
latter were the last ones seen, and none of those observed stayed 
more than one or two days on the island. This was no doubt 
owing to the fact that there were few grasshoppers or other insects 
for them to feed upon. 
56. (3864) Pandion haliaetus carolinensis. Osprey.—One_ osprey 
was seen soaring about over the Bay near the island, on August 
21. The keeper said that it was more common in the spring. 
57. (866) Asio ailsonianus. LONG-EARED Owlu—This_ species 
was not seen by the writer, but Mr. Singleton shot one on the island 
early in the spring of 1910. This was no doubt a straggler. 
58. (367) Asio flammeus. SHorT-EARED OwxL.—This owl was first 
Seen on September 7, when one was flushed from the rushes on 
Rattlesnake Point. Others were seen on September 9 and 26, at 
the same point. It was seen twice at the end of South Point, and 
once on the sand dune on the east beach. It seemed to be but a 
rare visitor on the island. 
59. (3875) Bubo virginianus virginianus. Great HorNED OwL.— 
The writer did not see this species, but, during the winter of 1902- 
1903, three came to the island and were shot in the spring by the 
keepers because they caught their chickens. Captain McDonald 
had a photograph of one of these. 
60. (876) Nyctea nyctea. SNowy Owt.—This species is given 
on the authority of Mr. McDonald, who has seen a number on the 
island in past years. It no doubt occurs there nearly every year, 
but during migrations only, as there is no permanent food supply. 
61. (887) Coccyzus americanus americanus. YELLOW-BILLED 
Cuckoo.—The yellow-billed cuckoo was seen the first day the 
writer went over the island (August 17), and no doubt belongs in 
the list of Summer residents. It was seen again on August 20 and 
at later dates until September 10, when it left the island. It 
seemed more common than the next species, although as shy and 
hard to observe. 
