Nocturnal activity of nesting shrubland and grassland passerines: Chapter 9
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Abstract
Nocturnal activity of nesting passerines is largely undocumented in field situations. We used video recordings to quantify sleep patterns of four shrubland and three grassland bird species during the nestling period. All species exhibited “back sleep” (bill tucked under scapular feathers); individuals woke frequently for vigils of their surroundings. Sleep-bout duration varied from 6 minutes (grasshopper sparrow) to 28 minutes (blue-winged warbler, field sparrow). Duration on nest varied from 6.4 hours (field sparrow) to 8.8 hours (indigo bunting). Adults woke 20–30 minutes before sunrise. First morning absence from the nest was short; nestlings were fed within 12 minutes of a parent’s departure. Further research is needed to understand energetic costs of sleep and behavioral adaptations to environmental pressures.
Study Area
| Publication type | Book chapter |
|---|---|
| Title | Nocturnal activity of nesting shrubland and grassland passerines: Chapter 9 |
| ISBN | 9780520273139 |
| DOI | 10.1525/california/9780520273139.003.0009 |
| Year Published | 2013 |
| Language | English |
| Publisher | California Scholarship Online |
| Contributing office(s) | Coop Res Unit Leetown |
| Description | 11 p. |
| Larger Work Type | Book |
| Larger Work Title | Video surveillance of nesting birds |
| First page | 105 |
| Last page | 115 |
| Country | United States |
| State | Connecticut |
| City | Southbury |
| Other Geospatial | Bent of the River Sanctuary |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |