The color vision of birds plays a role in their foraging behavior: Birds use color to select and avoid certain types of food. The authors of the article €œColour Avoidance in Northern Bobwhites: Effects of Age, Sex, and Previous Experience€ (Animal Behaviour [1995]: 519€“526) studied the pecking behavior of 1-day-old bobwhites. In an area painted white, they inserted four pins with different colored heads. The color of the pin chosen on the bird€™s first peck was noted for each of 33 bobwhites, resulting in the accompanying table.

Do the data provide evidence of a color preference? Test using a = .01.

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First Peck Frequency Color Blue Gree Yellow Red 16