资讯

The first purple martins of the year have been spotted in South Dakota, marking the start of spring migration. These birds travel up to 7,000 miles from Brazil to their breeding grounds in North ...
The migration of these unique birds can be reported and tracked through a community science project called the Scout-Arrival Study. Purple martins gather July 23, 2023, at the colony of birdhouses ...
“Tracking the migration is not only fun ... according to PMCA's Scout-Arrival Study tracker. See the scout map: Where purple martins have been seen this spring Keeping tabs on purple martins ...
Very similar to, sometimes indistinguishable from, other martins except the brown-chested. Female purple martin is the ... 3–6 eggs (late March–late May). Migration: in spring, arrives as ...