"Annual migration" refers to the yearly movement of animals or birds from one place to another. It is when certain species travel long distances to find better food, suitable climate, or to reproduce. Full definition
Spanning from the semi-arid Karoo to the north of Darlington Dam, across the Zuurberg Mountains, through the Sundays River valley and south to the Sundays and Bushman's river mouths, Addo also incorporates a marine reserve that includes the second largest breeding colony of African penguins, annual migration of whales, and St Croix and Bird islands. (blog.sa-venues.com)
Scientists believe the road will eventually cripple the world's largest big animal migration — two million wildebeest, zebra, and Thomson's gazelle pass along this route in annual migration from Tanzania to Kenya — and devastate regional tourism. (news.mongabay.com)
Migratory tiang and other antelopes are vulnerable due to annual migration between Badingilo National Park and the Sudd. (sciencedaily.com)