Description

Arrival dates for males and females in 10 pairs of Black-tailed Godwits (Limosa limosa)

Format

A data frame with 10 observations on the following 2 variables.

female

a numeric vector

male

a numeric vector

Source

Gunnarsson, T.G., J.A. Gill, T. Sigurbjörnsson, and W.J. Sutherland. 2004. Pair bonds: arrival synchrony in migratory birds. Nature 431: 646.

References

http://en.wikipedia.org/wiki/Black-tailed_godwit

Examples