Answer:
Voiceless it cries, Wingless flutters, Toothless bites, Mouthless mutters. What is it?
I have many feathers to help me fly. I have a body and head, but I'm not alive. It is your strength which determines how far I go. You can hold me in your hand, but I'm never thrown.
In the night a mountain, in the morning a meadow.
In the land of the green glass door there are riddles but no answers, sheets but no blankets, and books but no words. Name something found in the land of the green glass door.
My voice is tender, my waist is slender and I'm often invited to play. Yet wherever I go, I must take my bow or else I have nothing to say.
People take me on walks and I run and have fun. What am I?