"MaC" wrote in message
...

We have a pair of crows in the garden, as far as I remember I've
never seen them here before.

What do they feed on?

I'm in central Scotland and round here they seem to thrive on whatever
they find under the messy piles of grass clippings left behind by the
Council lawnmowers on the playparks. I went to have a look once, there
were black beetles, worms, slugs, leatherjackets, etc., all under the
rows. It reminded me of turning over the seaweed on the high tide line
on a beach, full of life.
MaC

http://www.jcrows.com/crowfct.htm has:
Crows are omnivorous. They eat whatever is available to them in their habitat
including insects, small amphibians and snakes, earthworms, eggs and nestling
birds, and clams, mussels, and other salt-water invertebrates. They also
scavenge carrion, garbage, and eat wild and cultivated fruit and vegetables

Jenny