I have cats, occasional raccoons, many birds including gold finch, cardinal, mockingbird, brown thrasher...which is why I don't use "kill traps."

 For that very reason,  I always place my traps where nothing else except rats can find them.  The only accidental death I had was a squirrel and we already have too many of those around.  

Since you mentioned the abundance of birds I hope you have your hummingbird feeders ready.  They are back in the area headed South and if they do like last year they will be in he area for several weeks.