IJsvogel (4 letters)
The Dutch word “ijsvogel” means “kingfisher” in English. Kingfishers are small, brightly colored birds that are often found near water. They are known for their diving ability, which they use to catch fish.
The word “ijsvogel” fits the clue “De vogel krijgt onderwijs in het riviertje” because kingfishers are often seen perched on branches or rocks near water, where they watch for prey. They are also excellent swimmers and divers, which suggests that they are “getting an education” in the river.
Alternative:
Waterhoen (4 letters)
The Dutch word “waterhoen” means “coot” in English. Coots are large, dark-colored birds that are often found in freshwater marshes and ponds. They are not as skilled at diving as kingfishers, but they are good swimmers and can forage for food underwater.
The word “waterhoen” could also fit the clue, as coots are often seen swimming and diving in rivers. However, kingfishers are more closely associated with the image of a bird “getting an education” in the water, due to their diving skills and their habit of perching on branches near water.