2022年5月10日 - EN

Researchers suggest that complex bird songs might require large populations Sleep-deprived magpies sing less After more than a century, California condors soar over redwoods once again Bird flu takes unheard-of toll on bald eagles, other birds A motif perched within the Gilgameš Epic Global bird populations steadily decline | Cornell Chronicle Thirsty birds struggle to survive in scorching Indian heat Bird flu outbreak nears worst ever in US with 37 million dead Can seagulls recognise you? Country diary: There are blue tits in the box, repeat, blue tits in the box Why saving Spoonie is a race against time Bird populations in eastern Canada declining due to forest 'degradation,' research shows