savi's warbler, locustella luscinioides. the male bird sings while sitting on top of a reed

savi 039 warbler locustella luscinioides vogel bird europa song singing habitat wildlife sitting perch animal nature beak call wild birdsong outdoors calling migration springtime wing feather environment ecology avian green spring reed songbird brown summer ornithology flora fauna male natural birding colourful colours watching ukraine daytime adult beautiful exotic single savi's sings top luscinioides reed