Can Captive Breeding of the California Condor Be Considered a Success

question 188

Multiple Choice

Can captive breeding of the California condor be considered a success?

• A) Yes, because captive-bred birds now use the same roosting sites as their predecessors.
• B) Yes, because the wild population increased from 22 in 1983 to 228 in 2014.
• C) No, because most captive-bred condors imprint on their human caretakers.
• D) No, because the reestablished population is now beginning to decline again.
• E) It's unknown, because the condors cannot be reliably tracked after they are released.

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Definitions:

Opponent Cells

Specialized cells in the visual system that help perceive color by opposing each other.

Pitch

The perception of the frequency of a sound, determining how high or low a tone sounds.

Frequency

The rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves) or in an electromagnetic field (as in radio waves and light), usually measured in hertz.

Hue

A specific shade of a color perceived by the eye, determined by its wavelength of light.