"Hello! Why are you shitty and want your cat to destroy the local bird population and then (statistically) have their life cut short? Much love, Your Neighbor"
EDIT: Downvote all you want but these facts are true:
- Cats decimate bird populations when they are loose.
- Indoor cats live longer, healthier lives.
If you love your pets (obviously not talking about barn cats that technically have a job, but housecats), you'll do what's best for them.
And schematics!