Step 1: Understanding Binomial Distribution.
A binomial distribution models the number of successes (in this case, the number of type P worms eaten) in a fixed number of independent trials (the total number of worms eaten), with two possible outcomes (P or Q worm).
Step 2: Explanation of the other options.
The Normal distribution is used for continuous data and is not suitable for discrete outcomes like counting the number of type P worms.
Log-normal distribution applies to data that is log-transformed and does not describe counts of events.
Uniform distribution assumes equal probability for all outcomes, which doesn't apply here since the bird is choosing between two types of worms.