On July 8, 1952, between 1:00 A.M. and 2:00 A.M., the ice started to move and formed leads near the shore of the Arctic Ocean at Point Barrow. Ordinarily the ice does not leave until approximately the 20th of the month. These new leads brought greater numbers of old squaws nearer shore. At 6:00 P.M. that same day eighteen old squaw ducks sat on the ice off-shore and approximately 100 flew to the east in three separate groups. At Kaolak River (July 12-18, 1951), old squaws were observed every day. On a four hour field trip (July 15), four adults were seen. On July 18 an old squaw was flying in company with a male pintail. An Eskimo hunting party of three men had killed a female (July 18) near our camp and were going to prepare it for food that evening. At Kaolak (July 21-27, 1951) we observed one pair with young and two single adults. At Barrier Lake, northeast of Teshekpuk Lake (July 29-Aug. 4, 1951), old squaw ducks were in evidence at least once or twice a day. On July 30, three birds were sitting on an island in a small lake adjoining Barrier Lake. They were molting and although capable of flight were using the island as a place of refuge. Two females shot on July 30, weighed 650 grams and had masses of ova smaller than those in the female shot at Topagaruk 23 days earlier. The largest ovum in the latter female was 2.3 mm in diameter. On a flight on August 4, 1951, from Teshekpuk Lake to Point Barrow we saw two flocks of 18 each when 73 and 34 miles southwest of Point Barrow. Between the mouth of the Canning River Canyon and Umiat (July 18, 1952), old squaws were more numerous in lakes adjacent to the Colville River than in lakes to the east. Upon our arrival at Gavia Lake (Aug. 20, 1952) a family of two adults and two juveniles and another family of one adult and six juveniles were the only ducks on the lake. One of the juveniles rested on the bank instead of feeding in the lake with the other ducks, and on August 23 died. On August 21, one duckling in the second family strayed out toward the center of the lake, whereupon the adult female swam out and herded the young bird back toward the group nearer the shore line. On August 22, the female and two ducklings of the first family were shot. The adult was 390 mm in total length whereas the young were 300 mm in total length and weighed 320 grams. Neither young birds nor the mother could fly. The breast of each young consisted of only a few thin layers of muscles whereas the adult's breast was made up of thick muscles. The second family had frequented the south shore, but moved to the north side of the lake when fired upon. On August 22, one duckling was 214 mm long and weighed 119 grams. Although the season was far advanced and the snows of autumn were already falling, ducklings of the sizes specified above were still unable to fly and the females were still molting the essential flight feathers.