Birds in flight

Mammals, amphibians, and reptiles of Costa Rica

Woodworking for wildlife

Oology and Ralph's talking eggs

Landscaping for Wildlife

Birds of Costa Rica

Field guide to the wildlife of Costa Rica

National Legacy

Workbook for a Career in Wildlife Management and Natural Resource Conservation

Butterflies, moths, and other invertebrates of Costa Rica

Woodworking for Wildlife: Homes for Birds and Mammals