Im nt ging to stand by and watch a defenseless bird be pecked to death. What defence did the crow have against you and your air gun? Nature can be cruel, have you ever seen a proper wildlife program? I dont mean the modern Cwis Packham type shit either. technically you broke the law under the terms of the general licence when you shot that crow. The only thing that comes remotely close to covering you is the clause that allows you to kill to conserve songbirds, but even that don't apply because last time I checked pigeons weren't classed as songbirds.