The frog that had no jewel in his head,
Except his eyes, was yet a fairy prince,
For he could change the colours of his coat
To match the mud of the stream wherein he reigned;
And, if he dwelt in trees, his coat was green.
He saw the green-winged birds of Paraguay
Hardening their beaks upon the shells they cracked;
The humming-bird, with beak made needle-fine
For sucking honey from long-throated blooms;
Finches with delicate beaks for buds of trees,