Populations of many
marsh-dependent birds appear to be declining, but we currently lack a
continental program that provides estimates of population trends for
most secretive marsh birds. The survey protocol outlined here is a
standardized survey methodology being used on a pilot basis at National
Wildlife Refuges and other protected wetland areas across North America,
and will ultimately be refined and proposed for use in a continental
marsh bird monitoring program.
Download the full report
(233Kb)