Image from the Biodiversity Heritage Library.
Contributed by Harvard University, Museum of Comparative Zoology, Ernst Mayr Library.
| www.biodiversitylibrary.org
Transcription
Clangula clangula americana.
Lake Umbagog, Maine.
1897. ly cracked and half-empty with such of the contents as remained moist but
June 2. of the consistency of damp meal. This egg is unlike the others in shape. Can it have been in the nest over the winter? If laid this spring why was it deposited so long before the other six?
Two or three hours later we found a third Whistler's nest by watching the bird while we were eating lunch. She first alighted on the water near the tree and for fifteen or twenty minutes swam or drifted aimlessly about preening her feathers. Then she flew out over the pond describing a great circle or rather loop rising gradually until she had attained a height of about twenty feet when she made directly for the nest, which was about thirty feet above the water. On nearing the tree she pitched up sharply the remaining ten feet keeping her wings in rapid motion up to the last moment but checking her speed very considerably just before she reached the hole. Some intervening branches prevented me from seeing just how she entered it.
Half-an-hour after this we paddled quietly across to the tree. As soon as I had taken a position which commanded a good view of the hole Watrous struck the base of the stump a single slight blow with his paddle. This was immediately followed by a scratching sound in the hollow above and then the