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Why we love it


A coxcomb chart (first used by Florence Nightingale) is a great way to display multiple facts at one location over time. We love how this map shows quantity and seasonal variation as part of the display, so you don’t have to use pop-ups or multiple maps to get a full picture of bird-related airstrikes on civilian aircraft. The graphic legend is not hidden—a good choice for this map. We also love that as you zoom, the analysis is resampled to create finer resolution coxcombs.

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Why it works


 A terrific amount of information is packed into this map. It’s easy to see regional differences and distinct seasonal patterns around the country. Each segment of the coxcomb diagram represents a unique time period and quantity. Because the sectors all have the same angle, they are visually equivalent when used to represent area. This makes the chart easy on the eyes, and the multiple wedge-shaped proportional symbols help us understand differences in quantity.

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