In what month do swallows nest?

Swallows start to build nests in March every year, and migrate from the middle of 65438+1October to the end of165438+1October every year according to the regional temperature. Domestic swallows nest under the eaves of farmhouses. These nests are made of saliva-bonded soil and grass stems, covered with soft weeds, feathers, rags and some Artemisia annua leaves. The bird's nest is dish-shaped.

Breeding 2 nests every year, mostly from May to early June and from mid-June to early July. Each nest lays 4 ~ 6 eggs. The second nest is less, 2 ~ 5 pieces. Eggs are milky white. Males and females hatch eggs together. 14- 15 days, chicks hatch and parents eat together. The chicks fly out in about 20 days, and then feed them for 5 ~ 6 days, so they can feed themselves. The food is full of insects.