I noticed the cage type traps are quite expensive. I took a look at the traps you recommend,and I'd imagine once the animal is trapped, it will need to be shot (more humane than letting them starve to death, or gnaw their foot off). I will usually shoot as last resort, but I don't see another...
Any idea what breed this may be? Are there chicken "mutts"? When I asked the old-timer who gave them to me, he said "well, they're white and kindly speckled I reckon". :)