Waterfowl collection at Slimbridge 1955-56 - The Breeding Season 1955

Abstract

The feature of the breeding season was the striking effect of cold weather on the well-being of the young birds. Frost in February and March may well have reduced considerably the hatchability of the Ne-Ne eggs, all 31 of which were laid during a period when the cold was so extreme that some African Black Duck eggs were split open before they could be collected.