I'm one who does not agree with taking breeding adults out of the wild. The decline in amphibians is bad enough so instead of taking away, why not put back. Easy solution to this. Wait until they breed, collect some tads, raise them to froglet stag, keep a few and release the other back where you collected the eggs. I did this 2 years ago and had a blast doing so. Collected 50 tads, 3 did not make it to froglet stage, kept 3,
released the rest. I had 3 Cope's but released them back into the wild last year. They did not do well in captivity, always pushing up on top of viv wanting out. Now my neighbor, her Cope's seem to love the captive lifestyle, so I go over there to get my fix. And now we do hear the Cope's calling in the evening. You didn't hear that a few years ago.