Screech Owl information:
http://www.songbirdgarden.com/store/info/infoview.asp?documentid=183
http://animaldiversity.ummz.umich.edu/site/accounts/information/Otus_asio.html
http://www.dansearthpage.com/Site/Welcome.html
Avian Egg Development (this is a pretty cool site): http://people.eku.edu/ritchisong/avianreproduction.html
Egg Identification: 1 3/8" High x 1 1/4" Wide, are pure white in color, usually oval or nearly globular in shape, and moderately glossy