Maclean 1968 Aphriza virgata (17) 28 May) go back. Come back again later and worker area NW of Steese Highway. Found a pair of birds by the edge of a snowfield on the NW side of the hill NW of the Highway at the Summit. These were sitting quietly, occasionally feeding very close together (<1 m.). When I shot 1 bird fell - the other jumped, but remained in the same spot until I shot it, too. In hand the size dimorphism is marked. The smaller bird, the ♂, also has more red on the back, brighter yellow legs, and heavier spotting on the breast and sides. The ♂ weighed 146.5g; the ♀ - 193.4g. The ♀ had ova to 17mm (approx. - it was slightly damaged by shot), followed by 8,6, and 5mm., i.e., she was getting ready to ovulate the first ovum in a day or so. There was no sign of defeathering of an incubation patch in either bird.