"As a means of defining the purpose of the problem, the following objectives were considered: (1) to list the species of birds observed in Denton and neighboring counties; (2) to assign a descriptive status to each species; (3) to estimate the relative abundance of each species (4) to annotate the list with data from other sources, when additional data provide a more accurate and complete description of the status of the species in Denton County; (5) to designate the section of the county in which each species was most frequently observed; and (6) to briefly summarize the changes in bird populations during the period 1950-1956, and to suggest some hypotheses which help explain these changes." -- leaf 6.
| Identifer | oai:union.ndltd.org:unt.edu/info:ark/67531/metadc663333 |
| Date | 01 1900 |
| Creators | Rylander, Michael Kent |
| Contributors | Silvey, J. K. G. (Joseph Kean Gwynn), 1907-1989, Schlichting, Harold Jr. |
| Publisher | North Texas State University |
| Source Sets | University of North Texas |
| Language | English |
| Detected Language | English |
| Type | Thesis or Dissertation |
| Format | iii, 86 leaves : illustrations, Text |
| Coverage | United States - Texas - Denton County |
| Rights | Public, Rylander, Michael Kent, Copyright, Copyright is held by the author, unless otherwise noted. All rights |
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