First talk to RobinFur and He will ask you to get some poppy seeds from LunarClaw, Go to the medicine cat den (Go to the far right where the dens are and click on the Rock with sand place, On the top right) And talk to LunarClaw or if your lazy you can just click on the Orange Flower (Poppy seeds) and then give them to RobinFur. Hope this helps!