| 1987 - Present |
DIRECTOR, VISUAL RESOURCES FOR ORNITHOLOGY,
The Academy of Natural Sciences. Ornithologist/Photographer. Direct the world's largest collection of bird photographs. Photography and research related to birds. Field work in Ecuador, Guyana, Philippines, Cameroon, Borneo and Alaska. |
| 1984 - Present |
PHOTOGRAPHER/WRITER. Freelancer specializing in natural science subjects. Publications in hundreds of books, magazines, calendars, CD-ROM's and museum exhibits. |
| 1982- 1984 |
FIELD BIOLOGIST, The Academy of Natural Sciences, Philadelphia. Research on foraging ecology of hummingbirds in Costa Rica. |
| 1979- 1981 |
WILDLIFE BIOLOGIST, Washington State Department of Game Field research in habitat management and preservation related to endangered species and habitat mitigation. |
| 1973 - 1978 |
OTHER POSITIONS. Wildlife Biologist, U.S. Bureau of Land Management - bird, reptile, amphibian and mammal surveys. Ranger-Naturalist, Point Reyes National Seashore. Field Assistant studies of lizard ecology and tropical bird ecology and behavior. Co-taught Ornithology Oberlin College. |