What is the primary difference noted between the two main subspecies, *P. s. senegalus* and *P. s. versteri*?

Answer

The vest coloration (yellow vs. deeper orange/red).

The slight differences between the subspecies only affect coloration; *P. s. senegalus* has a yellow vest, while *P. s. versteri* exhibits a deeper orange/red vest.

What is the primary difference noted between the two main subspecies, *P. s. senegalus* and *P. s. versteri*?
rarityspeciesbirdParrot