Data for: The spatial consistency and repeatability of migratory flight routes and stationary sites of individual European nightjars based on multiannual GPS tracks

Background: The degree to which avian migrants revisit the same sites to replicate routes from previous years has received more and more attention as the possibilities of tracking small to medium avian migrants over multiple annual cycles have improved. Repeated measurements of individuals can potentially inform about their navigation and migration strategies and to what extent observed variation within and between individuals may reflect the selective potential in the population.
Methods: We analysed the annual space-use of European nightjars (henceforth nightjars) Caprimulgus europaeus tracked with GPS-loggers in multiple years between northern Europe and southern Africa. We quantified site-fidelity to stationary sites and consistency, repeatability, and latitudinal correlations in route choice as well as investigated barrier associated changes of within- and between individual longitudinal variation in flight routes.
Results: We found that the nightjars consistently used the same bre..., GPS sampling by dataloggers on individual birds during the annual cycle to track migration and non-breeding movements., , # ME_Rep_EN_to_Dryad

[https://doi.org/10.5061/dryad.g1jwstr1s](https://doi.org/10.5061/dryad.g1jwstr1s)

## Description of the data and file structure

A file containing datetime and coordinates (Lat/Lon) with a temporal resolution up to 1 sample per day. Columns Bird Id and Tag Id identify unique bird and tag combinations. Some tags have been used on different individuals during different years.
### Files and variables

#### File: ME\_Rep\_EN\_to\_Dryad.csv

**Description:** 

##### Variables

* datetime: timestamp of GPS fix
* BirdId: Id of individual tracked
* TagId: Id of  tag used
* Lon: Longitude
* Lat: Latitude

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