Once again: You kill flies. Sometimes dozens of them. Your conscience is clear. That's wildly selfish of you, yet you don't seem to care about the flies. Why not? They're just as much a part of the ecosystem as the birds.
Also, this entire discussion is off-topic. The point was for vets to verify microchips, something directly related to the article.
you literally just quoted something about "respond to the central argument" to me. instead of following your own advice, you are closing your eyes, saying "off-topic" and yelling "what about!". all the while, ignoring the entire argument being put forth (alongside the dozens of citations that back the argument up).
Also, this entire discussion is off-topic. The point was for vets to verify microchips, something directly related to the article.