How rare are inland long-tailed ducks?

Earlier this week, Steve Broker posed this question about long-tailed ducks on the CTbirds listserve.  Both he, and Tom Robben, provided partial answers based on data from Christmas Bird Counts and eBird, which is to say, quite rare, but certainly not unheard of. Available data, however, are quite limited. Christmas Bird Counts are restricted to a 3-week window of time, and eBird records are highly dependent on how much birding attention inland sites get. Continue reading “How rare are inland long-tailed ducks?”