Posted: 21/02/2014 at 11:50
Thats fairly gruesome. I suppose its learned behaviour. One gets an easy meal off a dead one, and then they start on the live ones.
A bit like sharks turning up for the turtle hatchings, Bears turning up for the salmon run, and on Mull, a local told me that the sheep that graze seaweed on the beach, will take seagulls and eat them. Presumably they started with a dead seagull amongst the seaweed, and progressed from there.
I know the heron only turns up in my garden at this time of year, and goes straight for the pond.