tering flood of song pouring out behind. He is so full of song that he has to sing even when flying, just as the bobolink does.
Sunbeam guards the old elm tree very jealously until Sweetheart comes. He is something of an aristocrat and he does not want too many vulgar birds building in his own particular tree. Sweetheart is coming north more leisurely, traveling with a large flock of female orioles. Sunbeam does not do anything about their house until she arrives. I suppose he thinks that she might upset all his plans if he did. So he just amuses himself with scrapping with cock robin and the bluebird, and singing and winging hither and thither.
I am always glad when Sweetheart arrives and they can get to nest building. Of all the birds in North America they are the most skillful nest-builders. Sunbeam sometimes helps with the nest, but Sweetheart is the master builder. It is she who selects the graceful bough on the elm where they will hang the nest. It is usually a small branch perhaps half an inch in diameter, one that will swing freely
