Green Bee-eater is a very common open country bird.
It does have some movements and can show up elsewhere during that time.
Red-bearded and Blue-bearded Bee-eaters are very different. They both reside in the forest. Blue in the North and Red in the South. But at Kaengkrachan National Park in Western Thailand both can be found.
Blue-tailed Bee-eater is a stunning open area bird that I even see at my house. It has poorly understood migration patterns.
Chestnut-headed Bee-eater is a stunning bird found in forested areas but also at adjoining stands of trees.