Would this be considered cruel?

So i noticed some mouse dropping in my engine bay and i got pissed off. So i set up 10 rat/mouse traps around the perimeter. Aside from a few mice and a rat im mostly trapping birds. I probably already trapped like 20 birds already if you count all the birds i trapped last year too. Would this be considered cruel? I really don't want to stop because i don't want more mice in my engine bay so i just keep resetting the traps i feel sorry for the birds but not much i can do about it. I even learned that some of the birds were endangered like the cardinal i caught one time. Would you think im a cruel person?

Would this be considered cruel?
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