What phenology is not. (Clearing up confusing terms)
Sometimes people confuse the term "phenology" with unrelated words, especially "phonology" and "phrenology".
Phonology is a branch of linguistics that studies sounds of human speech and organizes them into systems.
Phrenology is a disreputable pseudoscience that purported to characterize people's personalities based on the shape of their heads.
Phenology is the study of cyclical and seasonal natural phenomena, especially in relation to climate, and plant and animal life.