Four Calling Birds,
Three French Hens,
Two Turtle Doves, and
A partridge in a pear tree.
Calling birds is an Americanization of the traditional English Colly birds. "Colly" is a dialect word meaning "black as coal". Colly bird or Black bird most likely refers to the Common Blackbird, Turdus merula.
The Common Blackbird is an old world thrush native to Europe, Asia and North Africa. It was successfully
Image via Wikipediaintroduced to Australia and New Zealand.The male of this species is black with yellow eye rings and bill. The female and juvenile, like most passerine birds, have dark brown mottled plumage.
Both male and female and territorial and will defend their carefully built, mud-lined, cup shaped nest.
It has a pleasant and distinctive song - a medley of chirps and whistles - and various warning calls.
I found this Youtube video by a patient birdwatcher. You can hear and see a Common Blackbird from Szlovákia.