"We move them by road; we put them in special transportation crates," said Francis Gakuya, director of veterinary services for KWS and head of logistics for the relocation.
Each shift requires four trucks. The number of animals each vehicle can hold depends on the species being moved. One crate can hold 10 zebras or 25 impalas, for example.
So far, 517 animals have been moved without incident, Gakuya said.
"We haven't come across any problems yet," he said, adding that his team takes "a lot of precautions."
At least one veterinarian rides on each truck in case the animals become restless. Gakuya said that when more than one male of a species is in a crate, particularly if they are impalas or zebras, they tend to fight, in which case, tranquilizers are used.
"You just calm them and move them," he said.
Apart from the influx of new wildlife, Meru National Park has undergone extensive renovations, such as new roads and airstrips and a bolstered ranger force.
But the animals are necessary to restore the park's ecosystem, said Josphat Ngonyo, director of the Kenya-based nonprofit African Network for Animal Welfare.
"Moving animals from where they're many to where they're less is a solution we'd propose," he said.
The reintroduction may also help offset the ecological imbalance of the park, which currently has a disproportionate number of carnivores compared to herbivores.
The relocation is not the first in Kenya. Species such as elephants have been moved long distances for conservation purposes in the past, Ngonyo pointed out.
He acknowledged that such moves usually come with challenges. Some animals may die in the process, for example, and local communities that live near the affected areas may not be involved in decision-making.
But in order to finally restore Meru, Ngonyo said, the drive is a "wise use of resources."
Once all animals have been moved, KWS officials said that it will work to ensure that Meru National Park will not be harmed by bandits and poachers again.
"If any poachers come in, we will be ready for them. That is why we are confident of moving these animals in a single go," Udoto said.
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