Does the chance of more common species arriving at the feeder change day to day?

Choose What to Display

The clustered bar chart has three colors each referring to the three species that are the least common out of the six focal species: Clay-colored Thrush, Crimson-backed Tanager, Thick-billed Euphonia. The horizontal axis is the date from February 11 to February 24. The height of the bars varies from 0 to 100 percent chance that the species will arrive during one of the half-hour intervals from 6:00 am to 6:00 pm each day. There is no clear pattern for the Clay-colored Thrush, with percent chance of arrival varying from 73 to 100 percent, but is relatively high each day. The Crimson-backed Tanager's percent chance of arrival increases from just over 65 percent on February 11 to closer to 90 percent on February 24. The Thick-billed Euphonias's percent chance also increases from February 11 to February 24 from 60 to 90 percent.

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Reading the Graph: Did the chance that a species arrive at the feeder during a half-hour time interval change day to day? How do species compare? Find out and see if you notice any patterns by simplifying the graph with the interactive feature. Look for the checked boxes under “Choose What to Display,” and toggle on and off the different species.

Notes: Each day is split into 30-minute intervals from 6:30 to 18:30 (i.e. 6:30 pm), and the height of each bar is the percentage chance that a species will arrive during each of those time intervals. Each color refers to one of the three more common focal species. The three less common focal species (Gray-cowled Wood-Rail, Gray-headed Chacalaca, Rufous Motmot) are featured in another graph. Be careful comparing different graphs because the values on the vertical axis will change.

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