No
It depends upon where you live. In many parts of the world, the white butterflies flying around are Cabbage White butterflies. In southern Florida, it would be the Great Southern White butterfly. Another white butterfly species that flies around the sides of the road in the US are Checkered White butterflies.
Green butterflies are not extremely rare; there are a variety of species that exhibit green coloring in their wings. However, the specific shade of green and patterns can vary between species, making some green butterflies more common than others.
three white butterflies dancing means dancing slowly and gracefuly
Nothing in particular. It is very common for butterflies to land on people.
Nectar
no they are white or greenish-white
Yes. Both white crocodiles and white alligators are quite rare.
At a lower level (than the skylark) a host of white butterflies fluttered about.
Yes, White Fang is a rare moshling.
the white turtlehead
white ones