wintering common chiffchaff phylloscopus collybita taking-off

action activity aerodynamics animal aves beat behaviour birds chiffchaff cloudy collybita common concept eye fauna flap flight full ghadira horizontal in islands leaf legs length level maltese morning nature off one open outdoors passeriformes passerines phylloscopidae phylloscopus profile reserve side single song-birds tail take taking view warblers wildlife wing wing-flap wings winter wintering