I notice that in POST 230: JACKIE JACKDAW, I placed some info about Jackdaws using their eyes to convey messages to other birds, then I forgot to go back to it the following day! Apologies.......here is the info:
In
the study, the researchers installed one of four different pictures in natural jackdaw
nest boxes near Cambridge, England, before the spring breeding season. One was
solid black, one had just a pair of jackdaw eyes, one had a jackdaw's face with
jackdaw eyes and one had a jackdaw's face with black rook eyes. Then, they
filmed the birds to see how they behaved in response to each image.
The
videos revealed that the nest box containing the jackdaw with bright eyes was the
most likely of all the images to deter other birds from approaching the nest.
The findings suggest that jackdaws use their eyes to send a warning message to
other birds.
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