IUCN threat status:

Critically Endangered (CR)

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Biology

In preparation for long periods of incubation, the female Galapagos petrel leaves the colony to feed for several weeks before returning between late April and mid May to lay two to four eggs. Returning each year to the same site, the male Galapagos petrel is faithful to both the female and the nest. After laying, the male takes the first incubation shift to allow the female to feed again. They take it in turns to incubate the eggs, until the chicks hatch 54 to 58 days later. Initially, the hatchlings have a covering of pale grey down on the back and white on the chest and belly. The male and female will continue to care for them for a further week, passing them regurgitated food after nibbling gently at the chick's bills to initiate feeding (6). The adults spend the non-breeding season out at sea, feeding during the day on squid, fish and crustacea driven to the surface by tuna and porpoises. They prey mainly on squirrel fish, flying fish, skipjack tuna and goatfish (6).

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Source: ARKive

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