Correctly identifying species and estimating numbers of birds in flocks during an aerial waterfowl surveys is extremely challenging and requires a trained eye.
You are exiting the U.S. Fish and Wildlife Service website
You are being directed to
We do not guarantee that the websites we link to comply with Section 508 (Accessibility Requirements) of the Rehabilitation Act. Links also do not constitute endorsement, recommendation, or favoring by the U.S. Fish and Wildlife Service.
