Mayfield estimates versus apparent nest success in colonial geese

Unbiased estimates of nest survival are often required to make robust inference about population and habitat management. We studied nest survival of lesser snow ( Anser caerulescens caerulescens ) and Ross's ( A. rossii ) geese at Karrak Lake, Nunavut, in Canada's central Arctic, 1995–2012. We monitored nests throughout the nesting period, from early egg‐laying to late incubation, and revisited nests after predicted hatch dates to determine nest...