a male pink necked pigeon dove resting on a branch twig of a tree

avian aviary away bird birding birds branch branches call calling canopy coronavirus covid covid19 cull culling dove doves feather feathers female flu green h1n1 h5n1 influenza leaf leaves lens light look looking male neck necked perch perched pigeon pigeons pink rest resting sars shade shades singapore telephoto top tree trees twig twigs virus wing wings