Author of the photograph: Matej Gamser
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The wallcreeper is a slightly larger bird, growing up to 17 centimeters. Its upper body is gray, while its belly is a shade darker. In summer, its throat is black, but in winter, the feathers in that area are gray or white. It has a black tail with a white edge and black wings with white spots.
For nesting, it chooses various rock crevices and caves from lowlands up to 3,000 meters above sea level, where there is enough space and moisture. The female lays 4 white eggs with black spots. After about 18 days, the young hatch in May or June and leave the nest after roughly three weeks.
The wallcreeper feeds on insects, spiders, and other invertebrates. It does not eat seeds! To find food, it descends to lower areas in autumn.