We have them in our yard too. Saw one grab a moth and bite the head off, nature, brutal, lol
One day I climbed a ladder to clean out my gutters and came face to face with a mantis eating a stink bug. Blech!
Mantids will attack anything, including a cat. Lots of videos here:
https://www.youtube.com/results?search_query=Praying+Mantis+Devours+Hummingbird