I've caught crows with side and top entry, so in my case it didn't make any difference, i know some people prefer a side entry for crows the choice is up to you.
Here's one Salclalin caught in a Mk 4 Fenn yesterday.It measures 19 inches from nose to tail.The slab is `18 inches long and used as a comparison as you can't see the tape correctly.The slab is on a sheet of Ply.
you cant show or sell British birds unless they are closed rung, including corvides if kept in captivity your call bird is only a temporary captive :whistle: