Left: House Sparrow ~ Haussperling ~ Passer domesticus
Right: Black Redstart ~ Hausrotschwanz ~ Phoenicurus ochruros
Birding for beginners: In these pictures you can see the difference between granivorous (left) and insectivorous (right) birds. The difference is obvious when you look at the beak shape: Granivorous birds have stronger and stout beaks that are strong enough to crush the shells of the seed. The beaks of insectivorous birds are thin and pointed to facilitate the grasping of insects e. g. in the crevices of the bark of trees.