Most of the achievements for Noblegarden are pretty easy.
I want to give a big THANK YOU to Marisse from my guild for showing me the perfect camping spot for eggs. I got over 200 eggs in an hour, there are 5 spawn points you can reach without ever moving.
In the following screenshot, the Psionic chicken is standing where the eggs can spawn. This is in Kharanos, and I am the purple bunny in the center. Enjoy!