A clutch of eggs is the total number of eggs laid in one nesting attempt.
Clutch sizes vary within and between species.
For example, an Ash-throated Flycatcher may lay between 4 or 5 eggs in an average clutch, while a Wood Duck may lay 7 to 14 eggs per clutch. Many factors influenced the clutch size of this Eastern Bluebird nest. Collecting the data needed to study clutch size involves monitoring nests on a regular basis, counting the number of eggs, and recording as much information about the nest as possible. Following these simple steps will help you to collect data in the same way as other citizen scientists participating in The Birdhouse Network. Set up your nest box as described on the Birdhouse Placement page.