A pair of BARN SWALLOWS
They built a nest above my door,it must be 2 months now,during the day,they will come and stay awhile,god knows what they are doing,sometimes they just fly by and leave.
At night,there is only one which sleeps in the nest,where is the other one?
2 years ago,I think it is the same pair which built a similar nest ,same place,and raise 2 babies,how can 4 fit in one small nest,it is rather shalllow?
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