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Figure 1 | BMC Veterinary Research

Figure 1

From: The impact of West Nile virus on the abundance of selected North American birds

Figure 1

Annual BBS counts of six species of birds on ten states and annual WNNID reports, by state. The color of the lines that connect counts indicates bird species: AMC = American Crows; AMR = American Robins; HSP = House Sparrows; NC = Northern Cardinals; BJ = Blue Jays; MOD = Mourning Doves. The tick mark on the secondary y-axis indicates the maximum annual incidence per 1,000,000 of WNNID in a state (red bars).

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