We have four cats - the younger two (brother and sister) were 2.5yrs in April. They were rescues - born in the rescue centre and adopted by us at 7months.
They are all outdoor cats - we are fortunate to have a very large garden, surrounded by fields, and are at the very end of a private road behind a gate so traffic is a very low risk.
For the past ~ 2 months the boy cat has been coming home with really horrendous injuries. Before that nothing. Early on he got very freaked out by us spraying the wounds with (cat specific) antiseptic and wouldn't come anywhere near any of us which made inspecting his wounds and taking him to the vet an impossibility and we have been very worried about him.
Lately he has been more trusting and coming to snuggle with me in bed so I can get a better look. They are healing but then he comes back with fresh ones 😢
We've extended the window that the cat flap is locked overnight which has improved things but not stopped it altogether.
We're not really sure if it's another cat, foxes (we have several very bold foxes that come into the garden and close up to the house) or something else.
Yesterday evening we heard a noise and went to investigate - he came in shortly afterwards with a new wound.
Apart from locking him in all the time, which I don't think would be kind as he loves to be outside, any suggestions what we can do to protect him/deter the predator?