The date listed is date of the census period. A Census involved more than one month. The month during which most of the work was completed is listed. Bird species observed in the colony. The species are listed in standard taxonomic order.
All data are numbers of individual adults observed.
Number observed, for species that build obvious nests. Count or estimate of individual breeding birds in colony. Count or estimate of nests or burrows in colony. Count or estimate of breeding pairs in colony. Type of estimate or count made by the observer.