Okay so I'm a first time chicken owner and I've had this flock for a bit over a year. Last night the chickens (7 in total) had all fit into the smaller coop that I own which has a very tiny run- for some odd reason they like that one better than their own. So this morning before i left for school (around 7) I decided to let them out to free range so they could have more space. Free ranging is not foreign to them but the time frame was definitely a lot earlier. Anyway, a fox ended up grabbing three this morning while I was at school (my mom had tried to save them but she wasn't fast enough) and the other four ran and hid in their favorite bush. It's severely overgrown and is around 11 by 4 feet with a height of 5. It's filled with poison ivy, thorns, and low hanging branches. I personally could not fit myself in there but they refuse to leave. Three of them excited for a few minutes when I brought them water but only because it wasn't too far away (only a foot out from the bush). Any tips on how to get them out???