Can chicks get furball? ... Eating dog and cat fur

[Esmeralda]

My chicks are 3 weeks old and spend a lot of time with the dog... They have gone from picking the occassional cat/dog hair from my clothes, and the sheet I put over the floor, to picking loose hairs straight from the dog. Unless they actually pull on one of his chin whiskers, he doesn't move. Should I be worried that these will clog their digestive system like a cat with a furball?
Has anyone actually had a problem with this?

 

[Granny Hatchet]

what a pretty dog. love the eyes. i have not had this experience but i would think if they ate too much it could cause an impacted crop. are the eating grit yet?

 

[Esmeralda]

Yes, they have both just click and dried garden soil with small pebbles and rocks in it, in a Tupperware dish. They pick through it and dust bath.
I can do a better job of using a lint brush on the sheets and my clothes, but it's hard to keep them from picking up the dog. She is the best call "hen", he keeps them contained to a small area, otherwise they would be through the whole house and the cat would eat them.

 

[Esmeralda]

Not- just click - chick grit - should have checked what the voice recognition program was typing