Even birds advertise. Male Songbird Indicates Body Size with Low-Pitched Advertising Songs http://t.co/5KrpAlXDyb
Paper on #bird #song shows advertising calls indicate male body size @PLOSONE @PLOS http://t.co/rlNVwNbCOC
#SixIncredibleThingsBeforeBreakfast: How low can you go? Songbird indicates big size by low tone. http://t.co/xDCERmgEuR #birds via @PLOSONE
#PLOSONE: Male Songbird Indicates Body Size with Low-Pitched Advertising Songs http://t.co/73jLwvDOKC
Barry White bird’s booming baritone brings the babes, say Melbourne scientists http://t.co/UcdtHQXGQJ
Male Songbird Indicates Body Size with Low-Pitched Advertising Songs http://t.co/EBbEhPHcYK
Male Songbird Indicates Body Size with Low-Pitched Advertising Songs http://t.co/EBbEhPHcYK