Are hummingbirds attracted to the color red?

Yes, Since hummingbirds can see red shades more easily they can quickly pick out the flowers that are most likely to be plentiful sources of nectar.

Explanation:

Red flowers, and of course red feeders, are often rich sources of food for hummingbirds. The color red often signals high-octane fuel for their intensely active way of life.

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The hummingbirds are likely seeking out red blossoms or making a beeline for a backyard nectar feeder accented with red plastic

Explanation:

The color red often signals high-octane fuel for their intensely active way of life

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x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]