Joel A. Schmutz 2000 <p id="ID0EF" class="first">I studied the frequency with which Emperor Geese (<i>Chen canagica</i>) of known age were observed breeding on the Yukon-Kuskokwim Delta, Alaska. No one- or two-year old geese were observed on nests. Three-year old geese bred at a lower rate than four-year old geese. These data suggest that patterns of age-specific breeding in Emperor Geese are similar to other sympatrically nesting, large bodied geese [Greater White-fronted Geese (<i>Anser albifrons</i>)] but delayed relative to smaller bodied geese [Cackling Canada Geese (<i>Branta canadensis minima</i>) and Pacific Black Brant (<i>B. bernicla nigricans</i>)].</p> application/pdf 10.1676/0043-5643(2000)112[0261:ASBIEG]2.0.CO;2 en The Wilson Ornithological Society Age-specific breeding in Emperor Geese article