Fig. 4
From: Prevalence and diversity of avian blood parasites in a resident northern passerine
Estimated prevalence (± 95% CI) of Leucocytozoon parasites infecting northwestern crows (Corvus caurinus) sampled in late winter during 2007 (grey) and 2008 (black) at 6 sites in southcentral and southeastern Alaska. Mean hourly wind speed (yellow), cumulative precipitation (blue), and mean daily temperature (red) for summer (1 May to 31 August) during the preceding year are shown with a square (2006) or circle (2007). No relationships were apparent between parasite prevalence and any of the weather variables. Note that Valdez, Haines, and Juneau were sampled in 2008 only