Which coraciiform birds feed while walking on the ground?

Within the order Coraciiformes, several birds are known to feed while walking on the ground. These include:

• Ground rollers: Found in Madagascar, these birds primarily inhabit deep forests and forage on the ground for food similar to that of the hoopoe.12
• Hoopoe: This bird typically feeds by walking with quick steps, bobbing its head, and probing the ground with its long bill to search for small vertebrates and large arthropods.2
• Hornbills: While many hornbills forage in trees, some species occasionally forage on the ground. Notably, the ground hornbills (Bucorvus species) exhibit a social organization while searching for insects and small animals on the ground, where they may catch prey flushed out by other members of the group.2

Additionally, while primarily a "watchful waiter," the shovel-billed kingfisher (Clytoceyx rex) of New Guinea is considered partly terrestrial and is known to dig for earthworms and beetles on the forest floor using its bill.2