- Birds of Ecuador
- Birds of Trinidad and Tobago (Helm Field Guides)
- Field Guide to the Birds of Trinidad and Tobago
- Birds of Northern South America: An Identification Guide, Volume 2: Plates and Maps
- Checklist of the Birds of Northern South America: An Annotated Checklist of the Species and Subspecies of Ecuador, Colombia, Venezuela, Aruba, Curacao, ... & Tobago, Guyana, Suriname and French Guiana