No.... unless you don't mind putting caps on at night and taking them off in the morning. This is what we've had to do with our feeders. It was after I built the second feeder while filling it up with feed that I noticed the rat droppings inside the feeder. I checked the next one and the same.
I use to use a long piece of rain gutter attached to the fence to feed them and it worked great. I could fill it up with feed and they could all eat at once and then the wild birds found it and they came by the dozens. The birds left after I built the new feeders and rats took their place.
We bought a pop door last year just so we didn't have to go out first thing in the morning and the last thing at night to open/close up the coop and the rats have taken away that pleasure.
My dad planted acres of clover for his honey bees behind our house and that's when the rats started to multiply. We never had rats before. Here in Texas rats/mice draws snakes/rattlesnakes.
I use to use a long piece of rain gutter attached to the fence to feed them and it worked great. I could fill it up with feed and they could all eat at once and then the wild birds found it and they came by the dozens. The birds left after I built the new feeders and rats took their place.

We bought a pop door last year just so we didn't have to go out first thing in the morning and the last thing at night to open/close up the coop and the rats have taken away that pleasure.
My dad planted acres of clover for his honey bees behind our house and that's when the rats started to multiply. We never had rats before. Here in Texas rats/mice draws snakes/rattlesnakes.