Activity in forest increases with the beginning of warm weather. Bird songs grow louder, more frequently activity can be noticed in birdhouses and hollows, where nests are being made. Here is a picture from forest with a question – who has redesigned nest house entrance hole of flying squirrel?
Correct answer: Eurasian nuthatch. A hollow or a birdhouse, which Eurasian nuthatch is preparing for nesting. He is narrowing the entrance hole with clay, so that only he would be able to get it, not starlings, woodpeckers, squirrels and others. In this picture it can be seen that woodpecker has tried to get into the nest house and has pecked the wood to widen the entrance.
It is possible that someone will puzzle over one thing – why is the clay so uneven, with small bumps? It is from the beak of Eurasian nuthatch – each bit of clay, which he brings, he pecks to the previous layer of clay with his beak.
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