Evaluating the success of translocating Red KitesMilvus milvusto the UK
| Autor: | D.C. Orr-Ewing, I.M. Evans, L. O'Toole, R.W. Summers, R. Evans, N. Snell, J. Smith |
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| Rok vydání: | 1999 |
| Předmět: | |
| Zdroj: | Bird Study. 46:129-144 |
| ISSN: | 1944-6705 0006-3657 |
| DOI: | 10.1080/00063659909461125 |
| Popis: | In an attempt to extend the breeding range of the Red Kite within the United Kingdom, 93 (48 males and 45 females) juvenile Red Kites, originating from Spain, Sweden and Wales, were released in southern England in 1989–94, and 93 (52 males, 40 females and one unsexed) juvenile Red Kites, originating from Sweden, were released in northern Scotland in 1989–93. Minimum estimates for first-year survival were 83.1% and 78.0% for male and female Red Kites in England, and 50.0% and 52.5% in Scotland, respectively. Annual survival then improved in the second and third years. Several sick or injured birds were recaptured, treated and returned to the wild, and some of these eventually bred. In their first year, birds released in Scotland tended to disperse greater distances than those released in England, females travelled further than males, and birds released during the early years dispersed further than those released during the later years. Successful breeding started in 1992 in England and Scotland. The mean a... |
| Databáze: | OpenAIRE |
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