Nicholas Bayly
Crossing the Caribbean: Identifying Critical Fuelling Sites for Neotropical Migratory Birds in Northern Colombia
The Sierra Nevada is expected to be an important staging area for Tennessee Warblers (Vermivora peregrina) on their way to breeding grounds in the boreal forests of Canada.
Blackburnian Warbler.
Gray-cheeked Thrush.
| Town/Region | Country | Categories | Date |
|---|---|---|---|
| Sierra Nevada de Santa Marta | Colombia | Birds, Central and Latin America | 24 Jul 2009 |
Over 125 species of birds migrate to and from North and South America each year, many of which are in decline. To maintain this remarkable migratory system, we must identify and protect sites used at all stages of a migrant’s complex life cycle. Despite the majority of annual mortality occurring during migration, sites used in South America to recover from the Caribbean crossing in autumn or to prepare for the 3000 km journey to North America in the spring are essentially unknown.
Findings from a previous Rufford funded project in NE Belize suggest that many migrants may store the energy necessary for this journey in South America and fly directly to North America without ‘refuelling’. To accumulate such a fuel load requires high resource availability and therefore high quality habitats but which habitats are used and where is not clear. To address this critical knowledge gap and provide vital information for the prioritisation of conservation actions in South America, this project will examine migrant use of forested regions in northern Colombia during migration for the first time. The region selected for this project is also home to no less than 630 bird species of which 17 are endemic. Increasing the case for further conservation measures in the Sierra Nevada is desperately needed in the face of continuing deforestation.
The project will use a combination of intensive mist-netting and transects to determine species use of two key habitat types, lowland and montane forest, and the degree to which the region is used to fuel for the Caribbean crossing. By incorporating environmental education and training activities into the project, we aim to both raise awareness of the uniqueness of the Sierra Nevada and its importance to migratory birds whilst also strengthening local capacity for further study.
To read about Nicholas' previous project http://www.ruffordsmallgrants.org/rsg/projects/nicholas_bayly or for further information contact nick_bayly@hotmail.com