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9 days ago
Gary Lefko wrote
Woodpecker woes: the right tree can be hard to find-https://www.fs.usda.gov/treesearch/pubs/54496
9 days ago 1 likes 0 comments 0 comments
Gary Lefko wrote
The biology of the California spotted owl-https://www.fs.usda.gov/treesearch/pubs/54987
9 days ago 1 likes 0 comments 0 comments
Gary Lefko wrote
Cover of tall trees best predicts California spotted owl habitat-https://www.fs.usda.gov/treesearch/pubs/55075
9 days ago 1 likes 0 comments 0 comments
Gary Lefko wrote
Land cover dynamics across the Great Plains and their influence on breeding birds: Potential artifact of data and analysis limitations-https://www.fs.usda.gov/treesearch/pubs/54647
9 days ago 1 likes 0 comments 0 comments
Gary Lefko wrote
Developing a monitoring program for bird populations in the Chiricahua Mountains, Arizona, using citizen observers: Initial stages-https://www.fs.usda.gov/treesearch/pubs/54536
9 days ago 0 likes 0 comments 0 comments
Gary Lefko wrote
Long-term demography of the Northern Goshawk in a variable environment-https://www.fs.usda.gov/treesearch/pubs/54157
9 days ago 1 likes 0 comments 0 comments
Gary Lefko wrote
Abundance of Black-backed woodpeckers and other birds in relation to disturbance and forest structure in the Black Hills and Bear Lodge Mountains of South Dakota and Wyoming-https://www.fs.usda.gov/treesearch/pubs/54347
9 days ago 0 likes 0 comments 0 comments
Gary Lefko wrote
The Plight of Migrant Birds Wintering in the Caribbean: Rainfall Effects in the Annual Cycle-https://www.fs.usda.gov/treesearch/pubs/54456
9 days ago 0 likes 0 comments 0 comments
Gary Lefko wrote
Seasonal survival estimation for a long-distance migratory bird and the influence of winter precipitation-https://www.fs.usda.gov/treesearch/pubs/54454
9 days ago 0 likes 0 comments 0 comments
Gary Lefko wrote
Using a full annual cycle model to evaluate long-term population viability of the conservation-reliant Kirtland's warbler after successful recovery-https://www.fs.usda.gov/treesearch/pubs/52906
9 days ago 0 likes 0 comments 0 comments
Gary Lefko wrote
Genetic recapture identifies long-distance breeding dispersal in Greater Sage-Grouse-https://www.fs.usda.gov/treesearch/pubs/53960
9 days ago 0 likes 0 comments 0 comments
12 days ago
Gary Lefko wrote
12 days ago 0 likes 0 comments 0 comments
Gary Lefko wrote
Welcome newest member, Neal Zaun [Boulder] - http://coloradobirder.club/TBuYZvKbiw
12 days ago 0 likes 0 comments 0 comments
17 days ago
Gary Lefko wrote
10.05.2017 0 likes 0 comments 0 comments
Gary Lefko wrote
10.05.2017 0 likes 0 comments 0 comments