Influence of radio transmitters on prairie falcons (Falco mexicanus)
Journal of Field Ornithology
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Abstract
We examined the effects of backpack radio transmitters on Prairie Falcon (Falco mexicanus) reproduction (percentage of occupied territories producing young and number of nestlings produced) over four years. In addition, we observed falcon aeries during brood-rearing to determine attendance at the nest and in the territory, prey delivery rates, and prey composition. We found no effect of radio tagging on Prairie Falcon productivity (nesting success and brood size) among years, although productivity varied significantly among years. The sex of the falcon tagged did not affect productivity. Radio-tagged members of pairs did not differ significantly from un-tagged members of pairs in territory attendance, nest attendance, prey delivery rates, or caching rates. Nestlings raised by radio-tagged parents attained masses similar to those reared by control parents. During low prey years, radio-tagged males brought a greater proportion of small birds and reptiles, and fewer mammals to the nest area than control males.
Suggested Citation
Vekasy, M., Marzluff, J., Kochert, M.N., Lehman, R.N., Steenhof, K., 1996, Influence of radio transmitters on prairie falcons (Falco mexicanus): Journal of Field Ornithology, v. 67, no. 4, p. 680-690.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Influence of radio transmitters on prairie falcons (Falco mexicanus) |
| Series title | Journal of Field Ornithology |
| Volume | 67 |
| Issue | 4 |
| Year Published | 1996 |
| Language | English |
| Contributing office(s) | Forest and Rangeland Ecosystem Science Center |
| Description | p. 680-690 |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of Field Ornithology |
| First page | 680 |
| Last page | 690 |