Fig. 8.8.

Seasonal variations and concentrations of magpies. A, Method 1: Recordings of magpie concentrations across all staffed/volunteer transect recordings (reproduced from Barrett et al. 200337 with permission from BirdLife Australia. B, Method 2: Computer-generated series of maps showing just some of the enormous fluctuations of magpie movements over the seasons. The darkest marks show the highest concentrations; blank areas represent no magpie presence. The driest and hottest parts of Australia have no magpie presence between October and January (panel 1) and January to April (panel 2). Between April and July (panel 3) and July and October (panel 4) (i.e. cooler and winter months), magpies have been recorded everywhere, even in dry weather. (Reproduced from Griffioen and Clarke38 with permission.)