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. 2015 Nov 19;5(23):5698–5710. doi: 10.1002/ece3.1820

Figure 2.

Figure 2

Overview of study area. Sampling of male (blue diamonds) and female (red circles) European blackbirds occurred along a rural to urban gradient (A) ranging from an urban forest in the southwest, across several larger parks to the city center in the northeast with adjacent tiny parks and green spaces. This gradient is also found in the distribution of artificial light (B) and anthropogenic noise from car traffic (C).