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birds

BBS Point Count and Occurrence Data from 2 Bird Species


Description

Data frames for 2 species from the breeding bird survey (BBS). Each data frame has a row for each site and columns for each sampling event. There is a point count and occurrence–designated by .bin– version for each species.

Usage

data(birds)

Format

catbird

A data frame of point count observations for the catbird.

catbird.bin

A data frame of occurrence observations for the catbird.

woodthrush

A data frame of point count observations for the wood thrush.

woodthrush.bin

A data frame of point count observations for the wood thrush.

Source

Royle J. N-mixture models for estimating population size from spatially replicated counts. Biometrics. 2004. 60(1):108–115.

Examples

data(birds)

unmarked

Models for Data from Unmarked Animals

v1.1.0
GPL (>= 3)
Authors
Richard Chandler [aut], Ken Kellner [aut], Ian Fiske [aut], David Miller [aut], Andy Royle [cre, aut], Jeff Hostetler [aut], Rebecca Hutchinson [aut], Adam Smith [aut], Marc Kery [ctb], Mike Meredith [ctb], Auriel Fournier [ctb], Ariel Muldoon [ctb], Chris Baker [ctb]
Initial release
2021-05-05

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