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Mara Wildebeest Migration

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Wildebeests - Maasai Mara KenyaEach year, nearly 2 million animals move through Tanzania and Kenya driven by seasonal rain and drought in what is known as the Great Migration. Each year, nearly 2 million animals move through Tanzania and Kenya driven by seasonal rain and drought in what is known as the Great Migration. One million wildebeest and 200,000 zebras make up the largest populations of the migrating herds, followed by gazelles. Though the timing of the annual migration varies from year to year and cannot be predicted with any certainty, we've outlined the general locations and movement patterns of the animals throughout the year below.

wildebests & Zebras - Maasai Mara KenyaDecember to April

These months find wildebeest and zebra herds scattered across the plains of the southern Serengeti and the northern Ngorongoro Conservation Area in Tanzania. Calving season generally lasts from late January through mid-March, with the largest number of calves born within a two- to three-week span in February. Hundreds of thousands of wildebeest calves are born during this time. Predators in the area take advantage of the abundance of slower calves, and sightings of species such as lions, cheetahs and hyenas are plentiful at this time of year.

May to July

As the plains dry up in May at the end of the long rainy season, the herds begin to move westward and then northward in search of greener pastures. The scattered herds eventually gather to form columns up to 25 miles long as they begin their trek from the south to the western and northern Serengeti. Predators, which are territorial rather than migratory, hunt as the massive herds pass through their terrain. Mating season for wildebeests also occurs during this time, between late May

Wildebeests Grazing - Maasai Mara Kenya

and early June. As the herds of zebra and wildebeest make their way northward, they must cross the Grumeti River, where hungry crocodiles wait for those that stumble. The best time to see this migration in action in the western and northern Serengeti is in June and July.

July to November

As the plains of the western Serengeti dry out and the grasses are depleted, the migration must continue. Between July and mid-August, the wildebeest, zebras and gazelles leave the Serengeti and Tanzania, cross the Mara River with its own population of crocodiles, and head into Kenya's Maasai Mara, where lush green pastures await. A visit to the Maasai Mara National Reserve when the migration arrives in August or September can make for an unforgettable experience due to the variety of species and the sheer number of animals. The herds scatter around the abundant grasslands of the Maasai Mara until October or November, when the start of the short rainy season prompts them to begin their journey south, back to their breeding grounds in the Serengeti and Ngorongoro Conservation Area.

The Wildebeest Migration Route

Great Mara Wildebeest  MigrationSimple route maps of the migration do assist in understanding the basic movement of the migration, but they don’t tell the whole story. We provide these to ensure our guests can quickly and easily get an overview of the migration path. It is however a simplified flow and shows the migration moving in a neat clockwise direction, never back-tracking or splitting and always in a given place at a specific time.

The actual migration is not that straight-forward. It is all influenced by weather patterns. The rains will affect the supply of standing water and grass and the wildebeest and zebra will react accordingly. Unusual weather patterns will cause the herds to move in unpredictable patterns, back-tracking or bypassing areas they may have visited in a previous year.

The main body of the migration generally follows a roughly similar route on an annual basis, but the timing can vary. Also, there are lots of subsidiary movements of herds as the migration splits, rejoins, spreads out or congregates. It is a fluid motion that is not completely predictable. Global warming may play a part in future migration patterns. In 2007, heavy flooding of the entire Serengeti and Masai Mara resulted in a high number of wildebeest drowning and affected the movements of the migration. The best way to understand the migration is to look at the previous years movements. This will give you a fair idea of where the migration was at any point in time.

Wildebeest & Zebras on the Great Mara MigrationThe wildebeest and zebra prefer the short grass plains of the southern Serengeti around Ndutu, Gol or southern Loliondo. This is where they would remain if water and food were available throughout the year, but it is not so they reluctantly move away while this region cannot support them. They will leave as late as they can (normally around April) and return as early as they can (normally around December). In other words, the earlier the rain arrives (November) and the longer it remains (April), the longer the wildebeest and zebra will be found in this area. This is where the wildebeest foal (normally around February and March) allowing their young to benefit from the abundant grazing and water. The migration will be dispersed over a large area around short grass plains of the southern Serengeti. They will move back and forth to graze where the grass is best. They can be as far east as Ngorongoro Conservation Area all the way to Seronera or Moru Kopje. They are in no rush. They are grazing. There is no major stampede or river crossings at this time, but the predators are very active preying on the young foals.

From around May, the rains stop and the plains of the south and east start to dry out. The wildebeest and zebra will start moving north and west, where there is more permanent water and grazing. The migration does not move as one unit. Some will move earlier than others. Some herds may even drop off from the migration completely and become resident along the way. The main body of the migration will head in westerly direction towards the Grumeti River and the western Serengeti. From here they will move north through Ikoma. But, break away herds may also head north through Loliondo or north west through Seronera. The objective is the same: To get to better grazing and water in the north of the eco-system.

Wildebeest Crossing the Mara RiverBy July or August, as the conditions get drier the migration will be seen around the Mara River as this has permanent water. Note that despite the permanent water here, the better short grasses in the southern Serengeti will always pull the main herds back later in the year.

The wildebeest and zebra migration do not all move into the Masai Mara at this point, leaving the Serengeti completely vacated. Especially if there is still water and grazing in the area, herds can still be seen in the Serengeti. In a good grazing year, there will still be herds as far south as Seronera. Unlike their human spectators, they will move freely between the Masai Mara Kenya and the Serengeti Tanzania often crossing rivers multiple times. This is one of the most spectacular times for the migration.

The wildebeest, Zebra and Thomson’s gazelles cross the crocodile infested waters of the Mara River. Predicting when and where is not always easy as they may come down to the river to drink, turn around and head in a different direction. They don’t just go in one predictable direction and keep going. Anything can trigger them to disperse at speed. When they do decide to cross, it can be a mad scurry and then suddenly end as part of the herd move away. This backward and forward movement of game around the northern part of the eco-system (Masai Mara, the surrounding ranches and northern Serengeti) normally continues from August to November when the pending rain starts to draw them back towards the south.

Around October bulk of the wildebeest will be moving through Loliondo and the east part of the Serengeti back to the short grass plains.
 

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Jim and Mary Miller


Dear Davies We have finally recovered completely from our wonderful trip! Ranger did a fabulous job, as you already know. Our guide was Bashir, and he was wonderful. Very professional, polite, well spoken and extremely knowledgeable! We did not understand that we were going to have an entire campsite to ourselves the first two days. It was a wonderful park and an wonderful experience. We were not crazy about Lake Manyara, but we loved the crater and the plains! The tented safari is the only way to go. It is wonderful to have animals walking in your camp, like they are members of the party We were able to see every animal, except the illusive Leopard, but we were not disappointed in the least. We had not come with a check list, but were t...

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