ReadMe for "Provisioning tactics of great tits in response to long-term brood manipulations differ across years". Mathot, Kimberley; Olsen, Anne-Lise; Mutzel, Ariane; Araya Ajoy, Yimen; Nicolaus, Marion; Westneat, David; Wright, Jonathan; Kempenaers, Bart; Dingemanse, Niels 2017-05-10 This read me file describles the data files accompanying teh above publication. For any furthert queries please contact mathot@ualberta.ca The following files are included: 1) "broodsizemanipulation.xlsx" This file contains the data used for the analyses on the effect of the brood size manipulations for brood size, and nestling mortality before and after the brood size manipulations 2) "provisioning.xlsx" This file contains the data used for the analyses of visit-level provisioning data. 3) "parent sums.xlsx" This file contains the data used for the analyses of long-term parent level provisioning data. 4) "nb_sums.xlsx" This file contains the data used for the analyses of long-term nestling level provisioning data 5) "weather.xlsx" This file contains the data used for analyses presented in the ESM (Text S3: Year differences in ecological conditions and Figure S2) Each file contains two sheets. The first sheet gives descriptions of the data and column headings, the second sheet contains the data.