Fish Crow or American Crow?
Here's how to tell the difference
Fish Crow
American Crow
Fish Crow
Corvus ossifragus
General appearance
The fish crow is slightly smaller than the American Crow, measuring around 43 cm. It has slightly more pointed wingtips and is generally black in color. Its wings show a broad and fingered shape, while its tail is rounded and square-tipped.
Male vs female
There are no significant physical differences between male and female fish crows. Both sexes share the same coloration and physical traits. Any difference would be identifiable primarily through their various calls and behavior.
Juvenile
Young fish crows produce many nasal calls much like young American Crows. Apart from these vocal differences, juvenile Fish Crows resemble adults in physical characteristics and coloration. As they mature, their overall size increases and their call alters, further distinguishing them from the similar American Crow species.
Size
14.2 - 15.7 in/6.9 - 11.6 oz
There's more to learn about Fish Crow
View full detailsAmerican Crow
Corvus brachyrhynchos
General appearance
The American Crow is a bird measuring 17-21 inches, or 43-53 centimeters, in length. It is easily identifiable by its complete black pigmentation and robust beak. Characteristic tail is rather short, ending in a shape close to a square when not in flight. In flight, the wings take a broad, fingered yet rounded shape. This species is noticeably larger compared to other members of the blackbird family.
Male vs female
Males and females are monomorphic, meaning they share similar appearances. Both sexes show the same strong all-black coloration from beak to feet and also share the same size, making it difficult to differentiate between them based on visual characteristics alone. They are both larger than other members of the blackbird family.
Juvenile
Juvenile crows bear a resemblance to the adults but can be identified by their slightly different voices and shapes. However, as they mature, these differences become less recognizable, and they assume full characteristics of the adults.
Size
16.9 - 20.9 in/11.1 - 20.3 oz
There's more to learn about American Crow
View full detailsHow to tell the Fish Crow from the American Crow
Visual differences
The Fish Crow (16-17 inches) is slightly smaller than the American Crow (17-21 inches). Both species are all black, but the Fish Crow has more pointed wingtips and a square-tipped tail. The American Crow has a more robust beak and a slightly larger build. In flight, the American Crow's wings appear more broadly rounded compared to the Fish Crow's slightly narrower wings. There is no significant sexual dimorphism in either species, and juveniles of both resemble adults.
Key differences and behavior
The Fish Crow and American Crow exhibit distinct behaviors despite their visual similarities. Fish Crows, smaller at 14-16 inches, are highly adaptable opportunists, scavenging for a wide range of foods, including coastal and aquatic resources. They often engage in nest raiding and food caching. Socially, Fish Crow pairs demonstrate close interactions through mutual preening, displaying affectionate behavior. Conversely, American Crows, larger at 17-21 inches, emphasize family structure, with young crows assisting in rearing their offspring. They thrive in diverse habitats, avoiding arid areas, and display tool-using intelligence. Their courtship involves elaborate body displays and mutual preening. While both species construct elevated, bulky nests from sticks, American Crows incorporate helpful offspring into their nesting process. Both species are omnivorous but differ in territory, with Fish Crows preferring coastlines and American Crows favoring semi-open human-adapted landscapes.
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