The control of migration, its timing and response are genetically controlled and appear to be a primitive trait that is present even in non-migratory species of birds. The ability to navigate and orient themselves during migration is a much more complex phenomenon that may include both endogenous programs as well as learning.
পরিযায়ী নয় এমন পাখির মধ্যেও আদিম বৈশিষ্ট্য কী?
migration