Air Rifle Hunting, Controlling Corvids Through Covid

I am hopping to decoy hooded crows into range of my FAC air rifle to try and control their numbers as the farmer contacted me asking for help with a hooded crow problem as one of his lambs had been killed by crows.
This is all done on farm land that i have permission to do so on with legally held air rifles and is done in a legal and humane manner as not to prolong or glorify the death of the birds.
This can legally be done through the Department Of Agriculture, Environment And Rural Affairs Wildlife (Northern Ireland) Order 1985 (As Amended) Licence.
This Licence hereby authorises for the purpose of preventing the spread of disease and preventing serious damage to livestock, foodstuffs for livestock, crops, vegetables, fruit, growing timber and fisheries ANY AUTHORISED PERSON to kill or take any of the following birds:-
Crow, Gull (Greater Black-backed), Gull (Herring), Gull (Lesser Black-backed), Jackdaw, Magpie, Pigeon (Wood), Pigeon (Feral), Rook, Sparrow (House), Starling.
Rifle FX Crown .22cal 30+ft/lb
Scope Bushnell Tactical Elite 2.5-16x42
Pellets .22cal JSB Hades
Bushnell Scout 1000 Rangefinder
The Bush chair hide
Tactacam 5.0 and FTS