Thanks for the posts in answer to some of them
Yes it is rats and not mice and they are getting into the mews as I have seen them on the cctv
Yes the birds do catch them the hawks more than the falcons which I would prefer they
didnt
No I do not know my poisons but would not risk any where the birds are due to as mentioned secondry poisoning to the birds that ar,nt cheep
I have tried all the suggestions with no results to date I cannot go into the pens to ofton as its the breeding season now and they wont take being disturbed when on eggs
Thanks for all the help
Dave
Here is one of the birds its a Harris X Redtail she is 3lb-14.5 lbs and hunts at 2-14lbs