This white rookery is composed first by hatchlings of the wood-ibis Mycteria americana Linnaeus, 1758, followed in lower proportions by hatchlings of the egrets Ardea alba Linnaeus, 1758 and Egretta thula Molina, 1782, and finally by hatchlings of the spoonbill (Platalea = Ajaia ajaja Linnaeus, 1758).
Nothing is known about the current occurrence of more sporadic species like the Roseate Spoonbill (Ajaia ajaja) documented and collected early in the century at Laguna Salada (Grinnell 1926; letters of E.W.