• Fledglings (young birds that have left the nest) are grayish brown and buff colored, with white heads, dark bills and eye stripes, and stubby tails.

• A rat-induced nest failure was particularly unacceptable in a year (2002) when there were only three active nests, only one of which was successful and produced two fledglings.

• In 1991, for example, only 12 nesting efforts are known to have occurred in the wild, and only one fledgling survived.