sproggle's are as common as crow's , and they take raceing pigeon's by stealth and suprise , , fact is we are getting it at both end's in the air & around the loft , by percy and the sproggle's , the goss hasen't got a real foothold here yet , but UNDER CLANDESTINE OPP'S the RSPB have a programe for a ramp up in number's , the only good thing that come's from a goss , it will kill the young sproggle's in the nest , sproggle's have almost wiped out small bird's in the area that i live , the pigeon was next on the menue , homer's , roller's in fact any type of pigeon , when they find the road to the cream jar , they won't leave you alone .