If Cowbird Eggs Are Laid in an Oropendola Nest in the Open

question 37

Multiple Choice

If cowbird eggs are laid in an oropendola nest in the open woodlands of Central America, what would be the expected outcome?

• A) The cowbird eggs would be ejected from the nest to eliminate the competition.
• B) The cowbird eggs would be ejected from the nest due to a reaction of the mother bird's immune system.
• C) The cowbird eggs would not be ejected from the nest because they provide an additional food source.
• D) The cowbird eggs would not be ejected from the nest because they provide protection from large predators.
• E) The cowbird eggs would not be ejected from the nest because they provide protection from parasites.

---

Definitions:

Lithium

A mood-stabilizing drug commonly used to treat bipolar disorder and prevent episodes of mania and depression.

Maintain Normal

Refers to keeping or continuing usual or expected conditions, often concerning health, environment, or operations.

Divalproex

A medication used to treat seizure disorders, bipolar disorder, and to prevent migraine headaches.

Anticonvulsant

A type of medication used to prevent or treat seizures, working by stabilizing electrical nerve activity in the brain.