FID Records.xlsx

This dataset contains raw observational data collected for a study on <b>flight initiation distance (FID)</b> in blackbirds (<i>Turdus merula</i>). FID is the distance at which a bird initiates escape in response to an approaching human, and is commonly used as a measure of anti-predator behaviour.Dataset Overview:Each row represents a single FID trial conducted under varying environmental and behavioural conditions. The columns include:<b>FID (m):</b> Flight initiation distance in meters<b>Starting Distance (m):</b> Distance between the observer and bird when the approach began<b>Habitat Type:</b> Urban or rural classification<b>Season:</b> Season during which the observation occurred<b>Trial Order:</b> Order of trials for each individual (where applicable)<b>Individual ID:</b> Unique identifier for birds (if relighted)<b>Weather Conditions:</b> Basic weather info (e.g., sunny, cloudy, windy)<b>Initial Behaviour:</b> Bird’s behaviour before the approach (e.g., foraging, perched)<b>Other variables (if applicable):</b> e.g., distance to cover, flock size, observer ID, etc.Notes:All measurements are in metric units.Values were recorded under standardized protocols to minimize observer bias.