Cuckoo and crow are examples of

Options

A. Competition
B. Ectoparasites
C. Brood parasitism
D. Predation

Answer

To answer the question "Cuckoo and crow are examples of," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Behavior of Cuckoo and Crow**:
- Cuckoo and crow are known for their unique reproductive strategy where they lay their eggs in the nests of other birds.

2. **Understand the Concept of Parasitism**:
- Parasitism is a relationship between two organisms where one organism benefits at the expense of the other. In this case, the cuckoo and crow benefit by having their eggs incubated and raised by other birds.

3. **Recognize the Specific Type of Parasitism**:
- The specific type of parasitism exhibited by cuckoos and crows is known as "brood parasitism." This is when a bird lays its eggs in the nest of another bird (the host), which then raises the young of the parasitic bird.

4. **Explain the Mechanism**:
- Cuckoo and crow eggs have evolved to resemble the eggs of the host birds. This mimicry prevents the host from recognizing the foreign eggs, leading them to incubate and raise the parasitic chicks as their own.

5. **Conclude with the Answer**:
- Therefore, cuckoo and crow are examples of brood parasitism.

### Final Answer:
Cuckoo and crow are examples of **brood parasitism**.

---