Well, this would be an excellent situation to build some larger nests and see which one the big birds use.
Would have to be in the same general location and have fake eggs in all to equalize the attractiveness.
My nests are all 14 x 14 x 16tall...and a portable floor model 14 x 16 x 16.....
...all have 10" diameter entrances centered 7" from top, leaves lots of depth for thick bedding.
I think they like a bit more room to turn around and get things just right before laying...even the slim birds and definitely the bigger birds.
Would have to be in the same general location and have fake eggs in all to equalize the attractiveness.
My nests are all 14 x 14 x 16tall...and a portable floor model 14 x 16 x 16.....
...all have 10" diameter entrances centered 7" from top, leaves lots of depth for thick bedding.
I think they like a bit more room to turn around and get things just right before laying...even the slim birds and definitely the bigger birds.