Certhia familiaris & brachydactyla Walter Linsenmaier

The picture has something of this: bird, wildlife, nature, animal, lithograph, avian, banknote, tree, biology, ornithology, nest, wild, woodpecker, beak, feather, people, wing.
Perhaps it’s a couple of birds standing on the side of a tree next to a green and white sign with a picture of two birds.