Fleet, Robert R., 1963-1965
Page 102
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Transcription
Fleet, R. 1964--notes by species-Kure 2 Blue-faced Booby January 30--Two pair in NAF with eggs under incubation on nest scrapes. One pair behind oil tanks copulating this morning. Males have a high pitched wheeze call and ?? have a lower pitched honk. Immaturess also have honk. Difference in bill color--male brighter yellow (comperative characteristic). February 7--One Blue-faced Booby ♀ in the Laysan study area observed sitting on abandoned Laysan egg. When frightened off of nest bird returned and sat on egg after nudging it with his beak. These birds lay 2 eggs, generally sit for 12? hour periods. February 10--Five Blue-faced Booby nests in NAF. One has a single egg, others 2. February 11--Six nests in NAF, two with single egg. One nest in SA--2 with single egg. Don't build nest, just bore areas of sand, no veg. February 21--First chick appeared. No down, eyes closed. Altricial. February 28--Second chick hatched in nest with first chick. Size ration about 4 to 1. February 29-- Second chick gone--eaten? March 19--New chick hatched in nest number 6. Observed ? at a scrape picking up and dropping twigs--in preparation to laying of egg. Difficult to move from scrape. (did lay).