swallow parent providing food for a fledgling

anflug animal approaching aufzucht barn beak being bird breeding chicks eltern fauna fed feeding fledged fledgling fledglings flafrac14 gel gge food frafrac14 hling futterneid geschwister hirundo jealousy jung jungtiere jungvogel mother mutter nachwuchs natur nature offspring one parent perching providing rauchschwalbe rustica schnabel schwalben siblings spring swallow three tiere upbringing versorgen vogel wild wildlife wings young