https://dxnest.com/xuong-gia-c....ong-yen-hu-nha-trang
The sight of a swallow’s nest, built in the shape of a cup of mud pellets lined with grass and feathers, is a sign that spring is just around the corner. In the wild, these birds build their hearty mud nests under cliff overhangs or in shallow caves but today they nest almost exclusively on manmade structures like barns, sheds, bridges and culverts. It’s no surprise that these aerial insectivores would choose to be close to food sources where they can feed their young all day long. Despite their close association with humans, these mi
Like
Comment
Share
