Top 20 Most Common Bird in San Leandro
Set against the picturesque backdrop of San Leandro, this Californian city boasts a rich variety of birdlife, enhanced by the locale's diverse habitats – from wetlands to grasslands. Here, bird enthusiasts can marvel at 20 common species, such as the iconic Red-tailed Hawk, American Kestrel, and Black Phoebe. Indeed, the chorus of feathered friends in San Leandro is as captivating as it is unique, setting it apart as a notable aviary destination.
Most Common Bird
1. American Crow
The american Crow is a big black bird that can be found in forests, fields, river groves, and among human habitations. Interestingly, it is known to stand atop ant hills and allow ants to climb onto its feathers; this apparently discharges their formic acid and makes them more palatable for the crow to eat. Sadly, american Crow numbers have been substantially affected by the West Nile virus in North America. Infected birds die from West Nile in less than a week.
2. House Finch
Frequent in urban environments and human-created habitats such as parks and backyards, the little house Finch is known for its loud but pleasant, cheerful singing. It feeds on the ground, mostly on seeds, berries, and other plant material. This bird is highly sociable and very adaptable. It often visits feeders.
3. Anna's Hummingbird
This hardy bird is a common sight along the Pacific Coast, with a bright, vibrant coloring that is anything but common. Look for their emerald feathers and soft pink throats, which gives them the appearance of a flying jewel. Anna's Hummingbird is more vocal than other hummingbirds, with a buzzy song you may hear from the males when they are perched.
4. California Towhee
This california Towhee looks basically like a larger sparrow, sharing the beak designed for seed cracking, the long tail, and the short, round wings. Their longer tail and shorter wings, however, give them a less graceful look while they’re in flight. This bird is unique in its uniform, matte brown coloring across the entire body.
5. Black Phoebe
Often spotted near creeks and ponds after you hear its sharp, whistling call, the small, plump black Phoebe is a sooty gray. Look for its white belly and squared tail to properly identify it. When perched, it wags its tail constantly. This bird feeds by taking short, quick flights to skim the water’s surface and snag an insect.
6. White-crowned Sparrow
This common sparrow has a white crown atop its head, which gave it its name, as well as a neat pattern down its wings and a long tail. Some groups of white-crowned Sparrows migrate, while others remain in coastal habitats year-round. Across different groups of these birds are different song “dialects” which are widely studied.
7. Snowy Egret
The snowy Egret is a mid-sized, totally white egret that prefers nesting in urban areas rather than in isolated locations where there are more predators. In the late 1800s, the bird's beautiful plumes were in great demand as decoration for women's hats. Because of this snowy Egrets were hunted to near extinction before laws came into effect to protect them.
8. Mallard
The mallard is the most abundant duck species in the world, and the ancestor of all domestic ducks. Only the female can produce the distinctive "quack" sound. When the female lays eggs, the male abandons its mate, while the protective mother stays with the ducklings for a long time. This migratory species inhabits shallow waters and it's one of the most popular game birds.
9. Double-crested Cormorant
This large, dinosaur-like bird is the most common form of cormorant. A frequent visitor to bodies of fresh water, look out for double-crested Cormorants at the water's edge when they “wing-spread”. They will stand with their wings opened wide and tilted towards the sun to dry their feathers, because they are not waterproof.
10. Canada Goose
Though this large, widespread bird is mainly known for its aggressively territorial nature, often shown by spitting, chasing, honking, or attacking, the canada Goose does have more loving traits. They mate for life, and this species is one of the birds that has minimal “divorce rates.” Interestingly, they choose mates by size, so smaller geese will mate with other small geese, and larger geese with other large geese.
11. Willet
The willet is a large, stocky, conspicuous shorebird, able to hunt during daytime and night thanks to the ability to sense prey by the tip of its bill. Besides its appearance, it is known for its loud, piercing voice. Once considered a popular game animal, the population significantly dropped in the 19th century, although it has recovered since the hunting ban enacted in 1918.
12. Turkey Vulture
The turkey Vulture is a common sight, especially around roads, where they keep a sharp eye out for roadkill. Seeing these large birds in the sky can often make you take a second look to see if it’s an eagle or a hawk. Here’s one quick way to tell the difference. When in flight, a turkey Vulture will circle unsteadily, with its wings lifted to make a V shape. Though they are not appreciated, they do the dirty work of the animal kingdom by cleaning up the countryside as they scavenge.
13. Song Sparrow
The song Sparrow can be found low to the ground in vegetation and thickets in nearly all habitat conditions, including suburban areas. They are frequent visitors to home birdfeeders but can also be seen foraging for food on the ground. Their appearance can differ across the 24 known subspecies, but all of them tend to only make short, fluttery flights.
14. California Gull
Adults are similar in appearance to the herring gull, but have a smaller yellow bill with a black ring, yellow legs, brown eyes and a more rounded head. The body is mainly white with grey back and upper wings. They have black primaries with white tips. Immature birds are also similar in appearance to immature herring gulls, with browner plumage than immature ring-billed gulls. Length can range from 46 to 55 cm (18 to 22 in), the wingspan 122–137 cm (48–54 in) and body mass can vary from 430 to 1,045 g (0.948 to 2.304 lb). 
15. Western Gull
The western Gull's dark back feathers and its large size set it apart from other gulls. It is a voracious feeder, eating fish, carrion, and invertebrates. It forages for food along shorelines and in the ocean. The bird is even known to take milk from female seals while they are sleeping.
16. Golden-crowned Sparrow
The golden-crowned Sparrow is a large-sized sparrow with a distinctive yellow crown on its head. It is found in forests and shrublands along the Pacific coast of North America, where it feeds on seeds and insects. During the breeding season, the male's yellow crown is more vivid and prominent. The Golden-crowned Sparrow is known for its distinctive song, a series of clear, musical trills. This sparrow is a hardy bird, able to survive harsh winters and adapt to changing environments.
17. American Coot
The american Coot is easily mistaken for a species of duck but does not have webbed feet and does not have a waddling gait. They can be found in and around ponds and lakes and frequently dive under the surface to feed on algae and other vegetation. These birds can live to be 22 years old!
18. Mourning Dove
One of the most famous and widespread doves of North America, the mourning Dove can be often seen in urban areas perching on telephone wires. It is named after its distinctive, plaintive-sounding song. It is also a popular game bird, but its population is still abundant thanks to the prolific breeding and its ability to raise up to five to six broods in a single year.
19. Chestnut-backed Chickadee
The smallest and the most colorful of all chickadees, this active and noisy songbird blends very well into the coniferous and mixed forests it inhabits. Although it sometimes can be seen in urban areas, the chestnut-backed Chickadee is a true woodland bird. It builds its nest using hairs of animals such as deer, rabbits, coyotes, skunks, and similar. Although not a true migratory species, it does move around in search of food.
20. California Scrub-jay
California Scrub-jays prefer to live in dry shrublands, oak forests, and treed backyards. These are mischievous little birds that like to steal acorns from Woodpecker hiding spots. However, when the scrub jays hide the acorns in a new spot they rarely remember where they've hidden them! It's a lose-lose situation. When not stealing acorns they like to spend time eating ticks and other parasites off the backs of mule deer. The deer seem to appreciate the attention and often hold up their ears to give the jays access.
