On the ceiling of the balcony in Hidaka school, there are 2 swallow nests. Whenever I enter the room, adult swallows perch on the electricity line waiting for me to get out the room so that they can feed their chicks. Swallows are historically famous in the world of animal behaviour because its tail characteristics, or attributes, paved the way for the notion of honest signs of attractiveness. I shall explain in more detail tomorrow.
国際交流センター地球村
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