Final answer:
The common pastoral poetic genre is Idyll, which is a short poem that portrays rural or natural settings and focuses on the simple and peaceful aspects of rural life.
Step-by-step explanation:
A common pastoral poetic genre is Idyll. An idyll is a short poem that portrays rural or natural settings, typically focusing on the simple and peaceful aspects of rural life. It often depicts scenes of shepherds or farmers and their daily activities in harmony with nature. Famous examples of idylls in English literature include John Milton's 'Lycidas' and Samuel Taylor Coleridge's 'The Rime of the Ancient Mariner'.