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Filter Project FeederWatch Data to "Standard" Seasonal Window

Source: R/pfw_truncate.R
pfw_truncate.Rd

Project FeederWatch's Data Users Guide (https://birdscanada.github.io/BirdsCanada_PFW/Start2.html) Suggests that data should be truncated by date to avoid biases from years where the Project FeederWatch survey season was extended. This function filters data to include only observations within the typical FeederWatch season: after November 8 and before April 3.

Usage

pfw_truncate(data)

Arguments

data

A Project FeederWatch dataset with Year, Month, and Day columns.

Value

A filtered dataset limited to Nov 8 – Apr 3 across years.

Examples

# Download/load example dataset
data <- pfw_example

# Truncate an active PFW dataset to November 8 - April 3
truncated_data <- pfw_truncate(data)
#> Data filtered to standard PFW season window.