For thousands of years we had no idea where birds went, how they got where they were going, why different species preferred different geographical locations, and how or why their populations fluctuated. Today the data we have on bird populations are excellent due to new techniques and scientific equipment. Since birds are relatively easy to find, capture, band, mark, and track, they are ideal to study. You can read more about avian migration , biogeography,avian ecology, and communities in Ornithology.com’s lectures.
Keeping tabs on the numbers of birds has many purposes. If there are significant changes to any bird populations, it may signal other changes in the habitat(s) or changes in other organisms’ populations.Birds are excellent early warning systems and we need take heed! Through such projects as the North American Breeding Bird Survey, Feeder Watch and the Audubon Christmas Counts, the general public has the opportunity to provide data to scientists- this is one of the few areas of science where amateurs and professionals can work together toward a common goal.
Geography of Birds Links
Audubon Christmas Bird Counts
Bird Population Studies
Breeding Bird Species Lists- U.S.
British Trust for Ornithology
Common Bird Census
European Bird Census Council
Free Software for Breeding Bird Survey
Irruptive Bird Surveys
Migratory Bird Data Center
North American Breeding Bird Survey
Project Feeder Watch
Partners in Flight
Ranges of North American Breeding Birds