Pretty Birds

In a futile attempt to delay having to do my homework I'm gonna post some more work I did from my previous semester. Here is a pretty tessellation I did for my final, my teacher said it wasn't a "true" tessellation, but I followed the instructions perfectly. I think she missed the fact that it not a translation tessellation it's a glide-reflect variety. I studied MC Escher's glide-reflects and got the technique of making them from my high school years. This is definitely a tessellation.