Is this a male or female crow? You can’t tell, as with many birds with long-term pair bonds. (Photo by Becky Matsubara) There are other differences besides color.

High levels of antidepressants in sewage could be affecting birds' mating behavior. ... Female starlings on Prozac are getting rejected and ignored by male birds, study finds. August 7, 2018.

This bird can be difficult for birders to approach. Find out more about the European starling. ... Male: with good look, note blue-based bill. Female: with good look, note pink-based bill ...

Birds of Ireland: Starling. And 'Tip of the Week' is about identifying the different kinds of bird call, ... They have pointed, yellow beaks with a blue-grey base (male) and pink base (female).

Witschi and Miller1 have shown experimentally that the yellow bill colour of the starling in the breeding season is induced by male sex hormone. This yellow colour does not develop after the ...

Local news News Garden birds of Alberton: The wattled starling The wattled starling is a bird that can be seen travelling through Alberton.

Starling numbers are in decline. The common European starling was recently placed on the red list as a bird of high conservation concern. In the UK, staring numbers have dropped by 67% since the early ...