https://dxnest.com/yen-tho/
When the first swallows return in spring, they often swoop down into open fields and other habitat near water to claim a nest site. They then start building their simple nests, and in a few weeks they will lay eggs. Sadly, this isn’t always enough to prevent starvation of both adults and young, especially if there are more returning swallows than sites available. The situation is much like trying to get a seat in a packed coffee shop on the Fourth of July weekend, with more people arriving than available seats. To increase the chance of success for Tree Swal
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