DOI: 10.5061/dryad.1vhhmgr0w
title: Magnolia Warbler (Setophaga magnolia) flight calls demonstrate individuality and variation by season and recording location

description: Flight calls are short vocalizations frequently associated with migratory
 behavior that may maintain group structure, signal individual identity,
 and facilitate intra- and interspecific communication. In this study,
 Magnolia Warbler (Setophaga magnolia) flight call characteristics varied
 significantly by season and recording location, but not age or sex, and an
 individual’s flight calls were significantly more similar to one another
 than to calls of other individuals. To determine if flight calls encode
 traits of the signaling individual during migration, we analyzed acoustic
 characteristics of the calls from the nocturnally migrating Magnolia
 Warbler. Specifically, we analyzed calls recorded from temporarily
 captured birds across the northeastern United States, including Appledore
 Island in Maine, Braddock Bay Bird Observatory in New York, and Powdermill
 Avian Research Center in Pennsylvania to quantify variation attributable
 to individual identity, sex, age, seasonality, and recording location.
 Overall, our findings suggest that Magnolia Warbler flight calls may show
 meaningful individual variation and exhibit previously undescribed
 spatiotemporal variation, providing a basis for future research.
description: # Data for: Magnolia Warbler (*Setophaga magnolia*) flight calls
 demonstrate individuality and variation by season and recording location
 [https://doi.org/10.5061/dryad.1vhhmgr0w](https://doi.org/10.5061/dryad.1vhhmgr0w) This record contains tabular acoustic measurements made in Raven Pro, recording metadata, and all analysis code and output. All of the following are contained in the ZIP archive for_dryad.zip. ## Description of the data and file structure The folder 1_prepare_measurements contains three subfolders: * 0_inputs * The metadata subfolder contains metadata for each recording used in the analysis. * The selection_tables subfolder contains measurements made in [Raven Pro](https://www.birds.cornell.edu/ccb/raven-pro/) for each call analyzed. * 1_code * The R script 1_load_selection_tables.R uses data files in 0_inputs. It summarizes acoustic measurements, calculates derived measurements, and merges the measurements with recording metadata. It then outputs a compiled dataset in csv format: 2_outputs/selections_compiled.csv. 0_selection_table_functions.R is a helper script that is called by 1_load_selection_tables.R and stores functions used in that script. * 2_outputs * The compiled output csv file selections_compiled.csv from the R script 1_code/1_load_selection_tables.R is saved here. This file is used as input for the statistical analysis. The folder 2_analysis contains two subfolders: * 1_code * The R script 1_analysis.R uses 1_prepare_measurements/2_outputs/selections_compiled.csv as input to conduct statistical analysis as described in the research paper. It outputs figures and tables in 2_outputs. * 2_outputs * Contains figures and tables generated by 1_code/1_analysis.R. ## Sharing/Access information Acoustic measurements provided here were made on audio recordings of temporarily captured wild migrant Magnolia Warblers (*Setophaga magnolia*) from Lanzone et al. (2009) and Morris et al. (2016). Recordings were made at three locations across the northeastern United States: Appledore Island Migration Station (AIMS) on Appledore Island off the coast of Maine; Braddock Bay Bird Observatory (BBBO) in western New York state; and Powdermill Avian Research Center (PARC) in southwestern Pennsylvania. Lanzone, M., DeLeon, E., Grove, L., & Farnsworth, A. (2009). Revealing undocumented or poorly known flight calls of warblers (Parulidae) using a novel method of recording birds in captivity. *The Auk*, *126*(3), 511–519. [https://doi.org/10.1525/auk.2009.08187](https://doi.org/10.1525/auk.2009.08187) Morris, S. R., Horton, K. G., Tegeler, A. K., & Lanzone, M. (2016). Individual flight-calling behaviour in wood warblers. *Animal Behaviour*, *114*, 241–247. [https://doi.org/10.1016/j.anbehav.2016.01.027](https://doi.org/10.1016/j.anbehav.2016.01.027)