How to Spot a Bull Frog
The Bull Frog, also known as the American Bull Frog, is a common frog in North America. Bull Frogs are known as True Frogs and they can be fairly easy to spot if you know what to look for.
- Difficulty:
- Moderate
Instructions
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1
Marvel at the size of the Bull Frog. This frog is the largest frog in North America. It is typically between 9 and 20 cm in length and can weigh up to 750 g. Female Bull Frogs are larger than males.
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2
Observe the Bull Frog's coloring. The top of a Bull Frog is usually a plain green or nearly plain green color. They can have a gray or brownish net-like pattern on their backs, however. The bellies of Bull Frogs are usually whitish or cream in color with dark gray mottled spots. The bellies, especially those of male Bull Frogs, can have a yellowish tint to them.
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3
Take note of the physical features of this large frog. Bull Frogs have long and large legs. They also have webbing on their hind feet. The fourth toe on the hind feet characteristically extends past this webbing. Their front feet (fingers) are not webbed. They also do not have dorsolateral ridges on their backs. The ridges that they do have end near their eardrums. Their skin is also usually quite smooth.
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4
Listen to the Bull Frog's sounds. They have a very deep voice. The sounds that the Bull Frog makes often sound similar to "jug-o-rum".
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5
Learn about the habitat and range of the Bull Frog. These particular frogs live in most of North America, ranging from the Rocky Mountains to the east coast and from central Florida north to Nova Scotia. Bull Frogs are aquatic animals who live in fairly large bodies of water such as ponds lakes, bogs and parts of streams. They can often be seen hiding in vegetation or on the edge of the water.
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1
Tips & Warnings
Don't confuse the Bull Frog with the Pig Frog. The webbing on the feet of the Pig Frog extends all the way to the tips of the toes unlike the webbing on the feet of the Bull Frog.
Don't confuse the Bull Frog with the Green Frog. Unlike the Bull Frog, a Green Frog does have dorsolateral ridges on its back.
