The song of the chingolo can be heard across South America. But young songbirds were no longer learning the tunes of their ...

Sooty grouse are very vocal at this time of year but are found at mid-elevations requiring a trip up a logging road. Listen ...

Song allows the bird to "speak" better than ... the new bird becomes a subordinate member of the group once more. White-browed sparrow weavers sing group choruses, which they use to defend their ...