Yazar
Susan Leigh Earnst
2 cilt bulundu.
Cilt sonuçları
Status assessment and conservation plan for the yellow-billed loon (Gavia adamsii)
Susan Leigh Earnst · U.S. Geological Survey, Information Services
42 sayfa · 2004
Yellow-billed loon / Conservation / Monitoring / Geographical distribution / Bird populations
Population trends of breeding birds in Ohio
Susan Leigh Earnst · In cooperation with Ohio Division of Wildlife and National Biological Service
125 sayfa · 1996
Birds / Geographical distribution / Breeding / Maps