Project Gutenberg 2011-01-31 Public domain in the USA. 219 Hoffmeister, Donald Frederick 1916 Hoffmeister, Donald F. Setzer, Henry W. The Postnatal Development of Two Broods of Great Horned Owls (Bubo virginianus) Produced by Chris Curnow, Joseph Cooper, Josephine Paolucci and the Online Distributed Proofreading Team at http://www.pgdp.net. "The Postnatal Development of Two Broods of Great Horned Owls (Bubo virginianus)" by Donald F. Hoffmeister and Henry W. Setzer is a scientific publication written in the mid-20th century. The book focuses on the specific developmental stages and habits of young Great Horned Owls, utilizing observational data collected from nests at the University of Kansas. It provides detailed insights into their growth, feeding behaviors, and nesting conditions. The publication chronicles two broods of Great Horned Owls observed in 1945 and 1946, detailing their incubation periods, weight growth patterns, and responses to their environment. Daily observations revealed a considerable increase in the weight of the young owls during the first few weeks, followed by a period of fluctuating growth linked to food availability provided by the parent owls. The study highlights their feeding habits, noting the diverse prey items brought to the nest, and concludes with an overview of their readiness to leave the nest at around 45 days of age, marking the transition from dependence to independence. (This is an automatically generated summary.) Reading ease score: 67.5 (8th & 9th grade). Neither easy nor difficult to read. en Owls QL Text Animal Animals-Wild-Birds Browsing: Nature/Gardening/Animals Browsing: Science - Genetics/Biology/Evolution Category: Science - Biology Category: Nature/Gardening/Animals 61435 2025-06-14T10:29:02.589395 text/html 56280 2011-01-31T14:23:04 text/html; charset=iso-8859-1 467069 2011-01-31T14:23:04 text/html; charset=iso-8859-1 application/zip 584720 2025-06-14T10:29:09.532404 application/epub+zip 582751 2025-06-14T10:29:06.705440 application/epub+zip 80032 2025-06-14T10:29:05.297405 application/epub+zip 806930 2025-06-14T10:29:11.499381 application/x-mobipocket-ebook 797100 2025-06-14T10:29:08.599365 application/x-mobipocket-ebook 90411 2022-09-16T07:03:31.553960 application/x-mobipocket-ebook 48816 2025-06-14T10:29:02.233403 text/plain; charset=us-ascii 48704 2011-01-31T14:23:04 text/plain; charset=iso-8859-1 17808 2011-01-31T14:23:04 text/plain; charset=iso-8859-1 application/zip 48698 2011-01-31T14:23:04 text/plain; charset=us-ascii 17791 2011-01-31T14:23:04 text/plain; charset=us-ascii application/zip 21023 2025-06-14T10:29:11.674354 application/rdf+xml 27092 2025-06-14T10:29:05.854378 image/jpeg 4782 2025-06-14T10:29:05.573384 image/jpeg 584097 2025-06-14T10:29:02.613391 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog de.wikipedia de.wikipedia