stayed at terms 3 or 4. Now it might be supposed that those nests which appear in middle or late July (Figs. 17-18) were the work of young birds, or of others which for some cause had not met with earlier success, but this is certainly not always the case. For the space of several day's I watched a pair of gulls, which had large chicks to feed, and repeatedly saw them leave their young and begin the construction of a new nest about a rod from the old one. The female would split
Page:Popular Science Monthly Volume 77.djvu/92
THE POPULAR SCIENCE MONTHLY.