The Exotic Birds Minecraft forum page contains a lot more information: Minecraft Forums
This mod adds in 29 brand new birds to your Minecraft world spawning in a variety of different biomes. Hear the ducks quacking on your pond, or the woodpeckers pecking high up in the trees; this mod helps to bring your worlds to life!
Birds can be found spawning in the world or can be hatched from eggs found in nests.
Each bird has multiple species, bringing the total number of birds to around 100.
A detailed bird encyclopedia gives you information and knowledge on the birds, as well as keeping track of how many species you have spotted.
If you'd like to keep up to date with the progress, you can join the Exotic Birds discord here: https://discord.gg/9S6NAjd
Unfortunately this mod does not work with the lapis stays mod. I am working on a fix, but it seems unlikely to come soon.