First year raising chickens, and it’s been a garden game-changer. I’ve had minimal problems with insects. My compost (always heavy on the carbon side) now has plenty of nitrogen. Oak leaves that took forever to break down are turned and shredded. Compacted rocky soil can be broken up by scattering bird treats on top.
...And they lay eggs.
I believe that the Chicken is one of the most useful critters on the planet. :)