. The Canadian field-naturalist. III' Fig. 1. Characierisiic little spruce patch in the muskeg. One side cut away- by cater- pillar tractors from a nearby airfield which gives a better picture of the size of the Owl, and Gray-cheeked Thrush which we missed among the breeding birds. We saw the Green-winged Teal, Harlequin Duck, Red- breasted Merganser, and Least Sandpiper, which Turner recorded as breeders or resi- dents which Hildebrand did not list for the area, and added the Black-backed Gull and Ruby-crowned Kinglet to the Chimo list. Turner collected 11 species of breeding birds wh
. The Canadian field-naturalist. III' Fig. 1. Characierisiic little spruce patch in the muskeg. One side cut away- by cater- pillar tractors from a nearby airfield which gives a better picture of the size of the Owl, and Gray-cheeked Thrush which we missed among the breeding birds. We saw the Green-winged Teal, Harlequin Duck, Red- breasted Merganser, and Least Sandpiper, which Turner recorded as breeders or resi- dents which Hildebrand did not list for the area, and added the Black-backed Gull and Ruby-crowned Kinglet to the Chimo list. Turner collected 11 species of breeding birds which the later observers missed. They were Goshawk, Black Gyrfalcon, Golden Eagle, Horned Owl, Snowy Owl, Hawk Owl, Arctic 3-toed Woodpecker, American 3-toed Wood- pecker, Tree Swallow, Rusty Blackbird, and Pine Grosbeak. Hildebrand believed the cutting of spruce near the Hudson's Bay Post was a considerable factor in eliminating some of these species, but the cutting affects such a very limited area that this could not have been an impor- tant factor except in the immediate vicinity. The scarcity of raptors may and probably does have some relation to the scarcity of rodents which were with the exception of Microtus rather scarce; Microtus was abundant only in small widely scattered areas. Neither Hildebrand's nor our own work produced any woodpecker records, a not uncommon experience in this type of country where such birds are seldom abundant. The absence of Pine Grosbeaks is not surprising. but the failure to find the Rusty Blackbird is surprising in view of its rather wide distri- bution in this type of terrain. The uncertainties of short field trips are well illustrated by a comparison of our records which were made in the Fort Chimo area between two of Hildebrand's visits. He stated that he took three specimens of the White- rumped Sandpiper at the mouth of the Kok- soak on August 31, 1947, but had no other records. Yet, during our stay on the coast. False River, and the l
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