Antipredator response data for captive, male red-wing blackbirds toward drones used as frightening devices

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Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

Below you will find a list and description of the files available in this data publication.

1). \Data\Eganetal_ArchivedDataset.csv: Comma-delimited ASCII text file containing antipredator blackbird behavior in response to drone approaches. This file can be used with the provided R code (RCode_Eganetal.r) to analyze the results. Variables include:

Treatment = Combination of platform type (Fixed-wing, Multirotor, Predator model), and approach type (Direct, Overhead) that each bird was exposed to during trials
Platform = Platform type that each bird was exposed to during trials (Fixed-wing, Multirotor, Predator model)
Trajectory = Approach type that each bird was exposed to during trials (Direct = head-on, Overhead)
Type = Fixed-wing and Predator model coded as "1", Multirotor coded as "0"
Latency = Latency to resume foraging (seconds)
LogLatency = Log transformed latency to resume foraging (seconds)
Speed = Drone speed per trial (meters per second)
Deprived = Length of time birds were food deprived prior to trials (hours)
Wind Origin = Direction wind originated from while being measured (W = west, E = east, N = north, S = south, and N/A = not applicable)
Wind = Wind origin combined to reflect headwind, downwind, crosswind, or tailwind (or none)
OriginCat = Direction wind originated from, converted to #s for coding (0 = none, 1 = northern headwind, 2 = northeastern headwind, 3 = eastern crosswind, 4 = southeastern tailwind, 5 = southern tailwind, 6 = southwestern tailwind, 7 = western crosswind, 8 = northwestern crosswind)
Windspeed = Windspeed (kilometers per hour)
Light = Ambient light intensity (micromoles per square meter per second [µmol m-2 s-1])
Temperature = Temperature (Celsius)
PUP1 = Proportion of time (30 seconds) birds spent head-up versus head-down prior to drone approaches
PUP2 = Proportion of time (30 seconds) birds spent head-up versus head-down following drone approaches
UPdiff = The difference between PUP1 and PUP2
Approach = Approach time (seconds) of the drone between launch and the time it passed above the enclosure
Sound = Ambient sound intensity (decibels) during trials
Alerttime = Individual alert time (seconds) per trial
LogAlert = Log transformed individual alert time (seconds) per trial
Flush = Did the bird flush the perch in response to drone flights? (1 = Yes, 0 = No)
Call = Did the bird alarm call in response to drone flights? (1 = Yes, 0 = No)
Flight = Individual flight-initiation time (seconds) per trial


2). \Data\Eganetal_MixedModelData.csv: Comma-delimited ASCII text file containing blackbird vigilance data collected before and after drone flight. This file can be used with the provided R code (RCode_Eganetal.r) to analyze the results. Variables include:

BirdID = Identification number assigned to each individual bird
Treatment = Combination of platform type (Fixed-wing, Multirotor, Predator model), and approach type (Direct, Overhead) that each bird was exposed to during trials
Platform = Platform type that each bird was exposed to during trials (Fixed-wing, Multirotor, Predator model)
Trajectory = Approach type that each bird was exposed to during trials (Direct = head-on, Overhead)
Speed = Drone speed per trial (meters per second)
Light = Ambient light intensity (µmol m-2 s-1)
Time = Time of measurement relative to drone flight (Before = before drone flight, After = after drone flight)
Vigilance = Proportion of time (30 seconds) birds spent head-up versus head-down


3). \Supplements\RCode_Eganetal.r: ASCII text file containing R code. This code can be used with provided CSV files to replicate results step by step as they appear in Egan et al. (2020).

Entity_and_Attribute_Detail_Citation:

Egan, Conor C.; Blackwell, Bradley F.; Fernández-Juricic, Esteban; Klug, Page E. 2020. Testing a key assumption of using drones as frightening devices: do birds perceive drones as risky? The Condor: Ornithological Applications 122:1–15. https://doi.org/10.1093/condor/duaa014

Metadata_Reference_Information:

Metadata_Date: 20200709

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Page Klug

Contact_Organization: USDA, APHIS, Wildlife Service, National Wildlife Research Center

Contact_Position: Supervisory Wildlife Biologist

Contact_Address:

Address_Type: mailing and physical

Address: USDA, APHIS, WS NWRC, North Dakota Field Station

Address: Biological Sciences, Dept. 2715

Address: North Dakota State University

Address: PO Box 6050

City: Fargo

State_or_Province: ND

Postal_Code: 58108-5060

Country: USA

Contact_Voice_Telephone: 701-630-3776

Contact_Electronic_Mail_Address: Page.E.Klug@aphis.usda.gov

Metadata_Standard_Name: FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001.1-1999