There were also owls born in this tree hole in the Wong Tai Sin park a few years ago.
Three years ago, photographers used a flashlight to capture the owls.
The Agricultural, Fisheries and Conservation Department then urged the public not to use a flashlight while taking photos of the owls.
The park also built a fence around the nest to prevent the public from disturbing the owls.
The owls found in the park were Collared Scops Owl.
They bred in tree holes, other nests and building corners between March and June every year, according to the notice in the park.
As they were nocturnal animals with sharp eyesight, they hunted Insects, lizards, other tiny birds and rodents at night.
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