Image from the Biodiversity Heritage Library.
Contributed by Harvard University, Museum of Comparative Zoology, Ernst Mayr Library.
| www.biodiversitylibrary.org
Transcription
Anas obscura.
Lake Umbagog, Maine.
1897. branches it would have been impossible for either man or bird
May 24. to see so much as one of the eggs either from above or from a
distance of four feet away in any direction. I have now no
doubt that nearly all the Black Ducks which breed about this
Lake place their nests on islands and this unquestionably is
to escape danger from the Foxes.