Hollycliff thats a great idea, yea I know your not talking house roaches haha. You may have to cut the thorax lengthwise for your birds if you feed them. I have to with the japanese beetles with the babys, the bigger birds rippem up no problem.
Wolfpacker I have a treat bowl that I have in their outdoor space, they know whatever hits that bowl is food. Works best when they are hungry in the morning. I've had 2 week old birds grubbin on grapes, figs, strawberries and whatever greens I can shred up for them. I start my birds on grass at 2 weeks. I just grab handfulls of it then rip it into 1-2 inch long pieces toss it in the cage and they go nuts. If your birds don't have access to dirt then you must give them grit if they are eating anything green and maybe even some bugs because chitin can be pretty tough.
Oh Wolf you need to realize that the maggots might have saved your birds life.... They eat rotting flesh first, the kind that causes disease. Maggots and leeches have their uses. Thou it does look nasty. One of the most gruesome sights I ever saw had to do with them. I found a dead baby cow when I was hunting as a child. It had maggots pouring out of its nose, mouth and eyes. Being the off kilter kinda of guy I am I of course took aim at it with my 12 gauge. Boom the thing literally EXPLODED all over, maggots and flesh flying through the air. A sight I will never forget and now neither will you
Bailey I used to raise maggots for other non food animals, your right I should start again(Thou it does trouble me to feed maggots that eat rotting flesh to a bird im gona eat, I know it won't do anything its just me). I grab anything that moves in my garden for the birds unless its a predator bug.