Nope, your comparison doesnt fly here. Dogs are not endangered or a protected species. And just tagging a dog doesn't absolve its owner for letting it off his property. I see that all the time where I live--someone finds a stray and puts a collar on it, then just allows it to keep roaming and come home to eat. That's hardly responsible ownership.
Nor do I believe does yours Speckled hen- if you shoot someones dog the responsible thing would be to notify them.  I give you that in a few cases it might not be prudent hence SSS, but for the most part its cause we don't want to own up to what's been done and hide behind the other reason.   Keystonepaul