Yep, but they aren't. Have seen some mods to try to fix that.They swore the setup was no waste...
I went thru several iterations, thought the 3" deep dish would do the trick but the tubing on the edges really helped. I think it eliminated the billing out, but not totally sure as I didn't really 'test' it.It’s hard to tell what I’m looking at in your picture... Do you have other pictures?
Here's the deets:
https://www.backyardchickens.com/articles/aarts-waste-free-funnel-bucket-feeder.67218/