Format
A table with 24474 rows and 2 columns, rows corresponding to light
measurements recorded in ten-minute intervals (datetime).Source
Baechler, E., Hahn, S., Schaub, M., Arlettaz, R., Jenni, L., Fox,
J.W., Afanasyev, V. & Liechti, F. (2010) Year-Round Tracking of Small
Trans-Saharan Migrants Using Light-Level Geolocators. Plos One,
5.