We've notice over the last 3 or so weeks 4 eggs (unbroken) and 2 chick (only a day old or so) on the ground and 3 different points around the garden.
All the eggs and Chicks are from Blackbird nest, the much beloved and myself muted a few possible reasons as to why they might be found on the floor, we assumed at first it was other blackbirds trying to muscle in on that part of the garden, they can be quite territorial, working on the theory that squirrels / magpies and anything else we could think of would take them for food so why would they just be left on the grass. Ok maybe once if they where disturbed, but on 6 different occasions, and they're just the ones we know about.
Last night we caught next doors cat in the laurel up at Bobs nest (Bob is the blackbird at the back of the house to the left of the lawn!) It would seem the cat is just playing with the eggs / chicks and then just leaving them once they get bored.
We've tried to discourage cats in our garden by hissing at them and the odd squirt from the hose pipe if we are using it when they are sauntering by, but we're out at work all day and so I suppose it not that effective.
We've just moved in so we could do with a way of discouraging all the cats without alienating the neighbours since we found them using the new bed as a litter tray
Any suggestions? ( the cheaper the better!)