Eaves – the lower border of a roof that overhangs the wall —usually used in plural.
http://www.merriam-webster.com/dictionary/eave
Used in “The Story of An Hour” fifth paragraph; last line. The word was used as a noun in the sentence to describe the thing on which the birds were twittering.
The notes of a distant song which some one was singing reached her faintly, and countless sparrows were twittering in the eaves.
She was describing the scene before her, and could hear the chirping of sparrows on the roofs around her. At first, I thought eaves may have meant trees, and was surprised to find that it meant the underneath a roof. Its almost like a little alcove.
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