young black woodpecker inside the nest in the trunk observes the surrounding environment in forest

nest woodpecker trunk hole wood pecker black woodpecker tree dryocopus head piciformes dryocopus martius habitat woodland nature wildlife beak animal wildlife picidae forest bird animal biology springtime birdwatching summer forest fauna birding wild wilderness martius ornithology park green beautiful pinery feather wait for food plumage dark red wings black