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The males only have blue beaks during the summer. Since summer and spring is their breeding time, I guess it's to attract mates or to let the females know that they are males, but they have many other ways to let the females know they are males.

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8y ago

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Do owls have beaks or bills?

Owls have beaks, not bills. Their beaks are curved and sharp, which helps them tear apart prey. Bills are typically longer and used for probing or foraging in birds like ducks or shorebirds.


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Do ducks eat ants as part of their diet?

How they hunt for food ? The duck's mouth is called a "bill". Normally, it is broad and flat and has rows of fine notches along the edge called "lamellae". The lamellae helps the duck to grip its food so that it will not slip off. However, ducks bills come in different shapes and sizes. The shape of the bill and body features will determine how the duck hunt for its food. Ducks which have broad beaks, sift their food for insects, snails and seeds from the mud. These are called the shovelers. The Northern Shoveler is an example. Female Northern Shoveler Male Northern Shoveler Some ducks have long and narrow beaks. The narrow beaks are also covered will saw-like edges which help them to grab fish. Sea ducks usually have this kind of beak. Sea ducks are also divers. Examples are the Mergansers, Eiders, Harlequins, Goldeneyes and Buffleheads. Some ducks do not dive for food. Their beaks are broad and short. They are called dabbling ducks or dabblers. They eat plants, seeds, grasses and other small insects and animals that they find on or under the water. Usually they up-ends and stretch their heads into the water to reach their food. Dabblers usually have shiny colored patches on their wings. The domestic ducks are dabblers too. They are descendents of the Mallards. Dabbling ducks take off from the water in quick jumps. Examples of dabbling ducks are the mallards, cinnamon teals, shovellers, green and blue-winged teals, pintails, black ducks, baldpates and gadwalls. For ducks with long necks, they dive their head down into the shallow water and pick up their food.