Chickens don't use roosting bar at night

[aart]

They do. Her are some pics. The brown one holds up to 4 and the blue one holds up to 8. The brown one has 1 hen and the blue one has 3.

Those population numbers are grossly inaccurate.....cut them in half, at least.
Here the best prefab modification I've ever seen:
http://www.backyardchickens.com/t/1134399/help-hens-roosting-in-nest-boxes/10#post_17749535

 

[rosemarythyme]

I'll never understand the prefabs that put the roost bars 1" over floor level. A chicken's instinct is to roost up higher and those low bars aren't catering to that.

Also I can guarantee that blue coop won't hold 8. There's no way that little enclosed area up the ramp is 32 sq ft. It's about big enough for 2, maybe 3, tops.

 

[ehoneybee]

Those population numbers are grossly inaccurate.....cut them in half, at least.
Here the best prefab modification I've ever seen:
http://www.backyardchickens.com/t/1134399/help-hens-roosting-in-nest-boxes/10#post_17749535

Yes I know but i have 1 hen in1 and 3 in the other so there is no way they are overcrowded.

 

[ehoneybee]

I'll never understand the prefabs that put the roost bars 1" over floor level. A chicken's instinct is to roost up higher and those low bars aren't catering to that.

Also I can guarantee that blue coop won't hold 8. There's no way that little enclosed area up the ramp is 32 sq ft. It's about big enough for 2, maybe 3, tops.

I know but our other girls got it and never "roosted" in the nesting boxes

 

[ehoneybee]

Our hen went into the blue coop with the new flock last night and it looks like they were on the bars with her so maybe she can teach them

 

[ehoneybee]

Giving exact dimensions is really what is required to give appropriate information. Chickens are flock animals, so they don't do well when forced into multi coop set ups to provide enough room. When you say the coops hold 8 or 4 birds, that leads me to assume that those coops do not provide the minimum recommended spacing of 4 s.f. of open area per bird, and 1 l.f. of perch space per bird.

Interesting you say the multi coop setup won't work. I had hoped to be able to put the coops together and eliminate a door so it would feel more like one coop.

 

[sbhkma]

Eliminating a door won't make that feel like one coop. It will still have separate areas in each coop and therefore remain as separate coops.

The wood-tone coop is exactly the one I have as a quarantine coop for pullets. 4 is the maximum that will fit and then only as young birds - and I have two runs attached to mine. As adults I wouldn't consider putting more than 2 in there. I also blocked off the nest boxes, since when I have birds in it they're way too young to use them. Roost poles really should be quite a bit higher than shown in your pic. Note: I did EXTENSIVE security upgrades on my coop, as it's really not very well put together. I added braces, locks and an electric fence around it. When the pullets are past quarantine, they go into the very sturdy, heavy duty hen coop and the quarantine coop gets put away til next time.

The blue one "might" hold 3 adults but that would be the maximum.

 

[ehoneybee]

Eliminating a door won't make that feel like one coop. It will still have separate areas in each coop and therefore remain as separate coops.

What's the difference between having a big barn with lots of different roosting places and 2 coops stuck together?

The wood-tone coop is exactly the one I have as a quarantine coop for pullets. 4 is the maximum that will fit and then only as young birds - and I have two runs attached to mine. As adults I wouldn't consider putting more than 2 in there. I also blocked off the nest boxes, since when I have birds in it they're way too young to use them. Roost poles really should be quite a bit higher than shown in your pic. Note: I did EXTENSIVE security upgrades on my coop, as it's really not very well put together. I added braces, locks and an electric fence around it. When the pullets are past quarantine, they go into the very sturdy, heavy duty hen coop and the quarantine coop gets put away til next time.

The blue one "might" hold 3 adults but that would be the maximum.

 

[aart]

What's the difference between having a big barn with lots of different roosting places and 2 coops stuck together?

The amount of space is the difference.
Your best bet might be to make the blue coop/run all coop by removing the wall between coop and run and putting up siding on the enlarged space. It would be easier than joining those two coops.