What kinds of beaks do coraciiform birds have?

Coraciiform birds exhibit a remarkable diversity in the shape and bulk of their bills, which are generally prominent and adapted for seizing and subduing prey. While there is significant variation across families, these beaks are typically straight or slightly to strongly downcurved.12

Key variations include:

• Stout and Straight: Many species, such as kingfishers, possess medium to long, stout, and often spearlike bills suited for capturing invertebrates and small vertebrates. Rollers and cuckoo rollers have moderately long, stout, and terminally hooked bills.12
• Slender and Curved: Hoopoes and wood hoopoes feature long, slender bills that are slightly to strongly downcurved, used for probing the ground or poking into tree crevices.12
• Large and Ornamented: Hornbills possess very large, laterally compressed bills that are often topped with a prominent horny casque, which may serve functions in courtship and social signaling beyond feeding.12
• Specialized Shapes: Bee-eaters have long, compressed bills that taper to a fine point, while todies have long, straight, flattened, and blunt bills. Motmots typically have stout, pointed, and slightly decurved bills with serrated cutting margins.2