BioStor
 | An ornithological survey in the Caribbean lowlands of Honduras J L Peters (1929) Bulletin of The Museum of Comparative Zoology 69: 397-478 |
 | The palatine process of the premaxilla in the Passeres; a study of variation, function, evolution and taxonomic value of single character throughout an avian order W J Bock (1960) Bulletin of The Museum of Comparative Zoology 122: 359-488 |
 | Notes on a collection of birds from Surinam Philip S Humphrey and Rudolf Freund (1962) Postilla 60: 1-11 |