Guineas won't return to coop

[Delawareforever]

I have 4 mo old guineas. They free range during the day and I have been feeding them only at night to get them to come in to be safe. (I lost 9 in one night when they stayed out)
They have been doing great until just 2 nights ago. I had to catch them to put them inside. Last night I waited until almost dark to see what they would do (roost, come in or ?) They remained in the field in a little group. I ended up herding them into the barn and let them stay in a stall. Grrrrr.
I don't want to go through this every night but I don't want to loose more birds.
They don't have a fenced area that I can just leave them in. I was also wondering if the coop was too hot (even tho I open it up to cool it down, leaving the windows and vent open at night)
Any suggestions?

 

[MuranoFarms]

Mine have come back to the coop every single night of their lives. Till 3 days ago. They decided the tree is the place to be. I left them there all night. The next night, 1 came back to the coop to sleep. Last night they were all back. Give them a few nights, they might come back in.

 

[Guinea Goonie]

This is the problem with Guineas.

One must train them to roost in a coop.

Guinea Fowl WILL NOT go into a coop that does not have a high roosting area. They would rather stay in a group in a field before they do this.

I am very suprised that they do not find a tree to roost in.

These are young birds and trainable.

KEEP THEN IN THE BARN, do not let them out anymore.

They need to stay in one place for a few weeks to know that it is home/roost.

When you let them out after the two weeks, only let out a few so they can hear the others in the barn to go home to.

After a bit you can let them all out, this may take a few weeks.

Once you get a group of 15 or so to roost in the barn you can start to add more.

I hav lost at least 5 this year to nesting outside the barn.

 

[glenolam]

Do you have chickens living with them? My chickens, ducks and guineas all live together and the chickens have taught the guineas to come home at dusk. I have had a few get 'confused' as to where home is, and I had to shoo them back in, but for the most part they all come back. They have very high rafters in the hen house as well, which is where they all sleep.

 

[bald k9]

From what nI have read you should keep keets in coop/pen til a least 6 weeks,

 

[Delawareforever]

Thanks everyone. All good thoughts.
They came back in last night - no problem. I don't know what to think. I guess I can put up with this once in a while.
Crazy Guineas!