M Verbeek 1966 Catalogue 2 148 Mallophaga of Stercorarius parasiticus 18 July 1966 Alaska, Barrow √N 149 Calidris bairdii ♂ Downy 19 July 1966 Alaska, Barrow. One of three downy young. <2 days old. Yolk sack present. Nest mate of 150, 151 7 g, testes L. 1.0 x .5 √N 150 Calidris bairdii ♀ Downy 19 July 1966 Alaska, Barrow. One of three downy young <2 days old Yolk sack still present. Nest mate of 149, 151 wt 6.5 g. √N 151 Calidris bairdii ♀ Downy 19 July 1966 Alaska, Barrow. One of three downy young <2 days old Yolk sack still present. Nest mate of 149, 150. wt 6 g. 152 Calidris bairdii 4 Embryos 20 July 1966 Alaska, Barrow. Embryos 19-20 days old, taken from the egg. Two of the eggs were pipped. Eggs collected 2 days after both parents were shot. Unpipped eggs weighed 7.9 x 8.4g ; pipped egg, weighed 8.4 x 8.2g. discard 153 Limnodromus scolopaceus ♂ Downy 26 July 1966 Meade River, 60 Mi. S of Barrow.