Top 20 Most Common Bird in Florence

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.

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.

This is a smallish cormorant which measures 25 to 35 in (64 to 89 cm) in length, with a wingspan of about 3.3 ft (1 meter) and a weight of 52–86 oz (1,474–2,438 g) when fully grown. Adults in nonbreeding plumage are all-black with a metallic iridescence. In breeding plumage they grow two short crests (one on top of the head and one at the nape), white thighs, and scattered white filoplumes on the head and neck. The long thin bill and the large feet with all-webbed toes are black throughout the year, while the patch of dark naked skin below the eye turns a vivid magenta in the breeding season. Males and females do not differ in appearance, though the latter is a bit smaller. Immature birds lack iridescence and are dark brown, grading into slightly lighter brown on the underside. The widely sympatric red-faced cormorant (P. urile) looks very similar. Breeding adults are easily told apart by the amount of naked facial skin, which does not noticeably extend beyond the eye in P. pelagicus, but extends to above the bill and above and behind the eye in P. urile; the latter species also has larger crests. Juveniles and nonbreeding adults of the two species are often indistinguishable even to trained observers when in mixed flocks, or if they cannot be observed up close. In the former case, the large naked face "mask" and light bill of P. urile can be easily recognized, in the latter case its larger size (though male pelagic cormorants can be as large as female red-faced cormorants). Unlike the red-faced cormorant, the present species usually calls out before taking off, particularly during the breeding season. In courtship display, nest material is typically torn and moved about (which P. urile might not do) and the males apparently do not bow their heads before the females as P. urile males do. Other North Pacific cormorants and shags are larger, with a thicker bill, and/or lack the white thighs in breeding plumage.

The adult male is on average 1,050 g (2.31 lb) and 48 cm (19 in) in length while the adult female averages about 900 g (2.0 lb) and 44 cm (17 in) in length, making this the smallest species of scoter on average. The surf scoter has a wingspan of 29.9-30.3 in (76-77 cm). The male is completely velvety black except for white patches on the forehead and the nape. It has a swollen bill, appearing orange at a distance but patterned with white, red and yellow, and a black spot near the base. The female is browner than the male, with a fairly uniform plumage, slightly darker above than below. Indistinct paler patches are present on the cheeks below the eye and sometimes a whitish patch is on the nape, a unique trait among scoters. The bill is black with green or blue colorations The juvenile has a plumage similar to the female, but mainly paler and browner, and the breast and belly are whitish The surf scoter is easily distinguishable from other scoters by the white patch on the head of the adult male and its unique bill pattern. Females and immatures have a bulkier bill and a more flattened head profile than other scoters, recalling the shape of the common eider (Somateria mollissima). The black and the white-winged scoters are physically very similar to the surf scoter but in flight, the surf scoter is the only one with completely dark wings. Like all sea ducks, the surf scoter becomes flightless during the simultaneous molt of its flight feathers. This vulnerable period happens usually in late July through early August and lasts for about four weeks. Before molting the flight feathers, all waterfowl undergo a complete body molt, replacing the bright colors of the basic plumage of males by the duller alternate or eclipse plumage. The plumage is a good indicator of the age for male surf scoters, but not for females.

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.

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.

The adult common loon can range from 66 to 91 cm (26 to 36 in) in length with a 127 to 147 cm (4 ft 2 in to 4 ft 10 in) wingspan, slightly smaller than the similar yellow-billed loon. On average, it is about 81 cm (32 in) long and has a wingspan of 136 cm (54 in). Its weight can vary anywhere from 2.2 to 7.6 kg (4.9 to 16.8 lb). Sizes vary regionally, especially by body mass, with the smallest bodied loons on average from lower-central Canada and the Great Lakes, while westerly birds are similar or mildly larger, and loons breeding further east can appear to be significantly larger. Furthermore, males average up to nearly 27% more massive than females in some populations. Breeding loons in Maine averaged 4.65 kg (10.3 lb) in females and 5.97 kg (13.2 lb) in males, essentially the same weight as the yellow-billed loon although the yellow-billed is still larger than in linear dimensions (especially bill length) than the Maine loons. In Ontario, 20 females averaged 4.5 kg (9.9 lb) and 20 males averaged 5.46 kg (12.0 lb). In contrast, in the Gulf of Alaska, adults of both sexes reportedly averaged 4.13 kg (9.1 lb). Adult breeding plumage consists of a broad black head and neck with greenish, purplish, or bluish sheen. It has a black bill sometimes with a pale tip, and red eyes. The neck is encircled with a characteristic black ring and has two white necklaces of eight to ten short streaks on the upper foreneck, and a noticeable collar of white, parallel lines forming a large oval on the neck-side. The central lower foreneck is pure white, and the lower neck-sides has longitudinal white lines becoming rows of small spots and black lines becoming very narrow. The upperparts are blackish or blackish grey, and each feather has small white spots on it. The upperwing is blackish and with small white spots on the non-primary coverts, whereas the underwing is paler with white coverts except the long black shaft-streaks on the axillaries. The underparts are pure white, but have some black on the undertail coverts and vent. It has a checkered black-and-white mantle and a blackish tail. The legs are pale grey on the inner half and blackish on the outer half, and the webs between the toes are flesh coloured. Adult non-breeding plumage is brownish with a dark neck and head marked with dark grey-brown. The eyes are surrounded with white, and the eyelids are pale. The bill is mostly pale grey, with a dark culmen and tip, but in early spring the tip may turn whitish. The underparts, lower face, chin, and throat are also whitish. The foreneck is whitish, usually forming wedge-shaped notch in dark neck-sides, and may sometimes reveal a shadowy trace of the neck ring or a pale collar. It has dark brownish grey upperparts with an unclear pattern of squares on the shoulders and some wing coverts spotted with white, which are usually concealed while swimming. The male and the female have similar appearances, although they exhibit sexual dimorphism in their physical dimensions with the male larger and significantly heavier than the female. The heavy dagger-like bill is evenly tapered and greyish, sometimes having a black tip. The bill colour and angle distinguish this species from the yellow-billed loon. The neck is short and thick. It swims very low in the water, with sometimes only its head held above and horizontal to water. It must run across the water surface to get in flight. During flight, its head is slightly lower than its body, with its feet trailing behind. It has a skeletal structure made up of a number of solid bones (this is usual for the Gaviiformes and penguins but unlike most flying birds which have bones with extensive pneumatization, hollow and filled with air to make the lighter), which adds weight but helps in diving. A juvenile often has a dark, brownish-grey nape that may look darker than the pale-edged black feathers. It has a dark grey to black head, neck, and upperparts, with white throat, cheeks, and underparts. During the first winter, the bill shape of the young may not be as fully developed as that of the adult, and during the second winter, it much resembles the breeding adult, but with wing coverts lacking white spots. The common loon is distinguished from the black-throated loon (G. arctica) and the red-throated loon (G. stellata) mainly by its larger size. It usually has a steeper forehead and a bulging forecrown, somewhat similar to the black-throated loon. Its bill is heavier and the back is paler than its hindneck. It is more difficult to separate from the yellow-billed loon, but its breeding plumage has more white markings on the neck and the squares on its shoulders are usually smaller; the non-breeding plumage has darker neck-sides contrasting more sharply with pale areas and bill colour.

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.

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).

This gull is a large bird, being close in size to the herring gull, with which it has a superficial resemblance, and the western gull, to which it is likely most closely genetically related. It measures 50–68 cm (20–27 in) in length and 120–150 cm (47–59 in) in wingspan, with a body mass of 730–1,690 g (1.61–3.73 lb). It weighs around 1,010 g (2.23 lb) on average. Among standard measurements, the wing chord is 39.2 to 48 cm (15.4 to 18.9 in), the bill is 4.6 to 6.4 cm (1.8 to 2.5 in) and the tarsus is 5.8 to 7.8 cm (2.3 to 3.1 in). It has a white head, neck, breast, and belly, a white tail, and pearly-gray wings and back. The ends of its wings are white-tipped. Its legs are pink and the beak is yellow with a red subterminal spot (the spot near the end of the bill that chicks peck in order to stimulate regurgitative feeding). The forehead is somewhat flat. During the winter, the head and nape appears dusky, and the subterminal spot becomes dark. Young birds are brown or gray with black beaks, and take four years to reach adult plumage. The glaucous-winged gull nests in the summer, and each pair produces two or three chicks which fledge at six weeks. It feeds along the coast, scavenging for dead or weak animals, fish, mussels and scraps. In urban areas it is well known for its tendency to accept food from people and peck open unprotected garbage bags in search of edibles. Its cry is a low-pitched "kak-kak-kak" or "wow", or a more high-pitched wailing.

The foraging yellow-rumped Warbler is quick-moving and appealingly colored. Both male and female are a sharp gray, with white on their wings and flashes of yellow on their rump (as the name suggests), sides, and face. Most striking about this bird is the large groups of them that spread across North America in the autumn season.

The wrentit is a small, 15 cm (5.9 in) bird with uniform dull olive, brown, or grayish plumage. It has short wings and a long tail often held high (hence the comparison to wrens). It has a short bill and a pale iris. Given its retiring nature and loud voice, the wrentit is more likely to be detected by its call than by sight. The distinct sound that it makes is similar to the sound of a ping-pong ball falling on the table.

The red-necked grebe is a medium-large grebe, smaller than the great crested grebe of Eurasia, and the western and Clark's grebes of North America, but noticeably larger than other northern grebe species. The adult of the nominate European subspecies is 40–50 cm (16–20 in) long with a 77–85 cm (30–33 in) average wingspan, and weighs 692–925 g (24.4–32.6 oz). In breeding plumage, it has a black cap that extends below the eye, very pale grey cheeks and throat, a rusty red neck, dark grey back and flanks, and white underparts. The eyes are dark brown and the long, pointed bill is black with a yellow base. The winter plumage of the red-necked grebe is duskier than that of other grebes; its dark grey cap is less defined, and merges into the grey face, and a pale crescent that curves around the rear of the face contrasts with the rest of the head. The front of the neck is whitish or light grey, the hind neck is darker grey, and the yellow of the bill is less obvious than in summer. Although the red-necked grebe is unmistakable in breeding plumage, it is less distinctive in winter and can be confused with similar species. It is larger than the Slavonian (horned) grebe, with a relatively larger bill and a grey, rather than white face. It is closer in size to the Eurasian great crested grebe, but that species is longer-necked, has a more contrasting head pattern, and always shows white above the eye. The sexes are similar in appearance, although the male averages heavier than the female. Chicks have a striped head and breast, and older juveniles have a striped face, diffuse blackish cap, pale red neck and extensive yellow on the bill. The subspecies P. g. holboelii is larger than the nominate race at 43–56 cm (17–22 in) length, with a 61–88 cm (24–35 in) wingspan, and a weight of 750–1,600 g (26–56 oz). The plumages are the same as those of the nominate race, although the adult's bill is more extensively yellow. The difference in size between the sexes is greater than for this subspecies that for P. g. grisegena. The red-necked grebe flies with its long neck extended and its large feet trailing behind the body, which gives it a stretched-out appearance. The relatively small wings are grey with white secondaries, and beat very rapidly. Its small wing area means that the grebe is unable to take off from land, and needs a lengthy run across water to gain the speed needed for take-off. Like all grebes, the red-necked is an expert swimmer; it uses its feet for propulsion underwater, and steers by rotating its legs, since its tail is too short for this purpose. This is one of the most vocal grebes during the breeding season, but, like its relatives, it is mainly silent for the rest of the year. It has a loud, wailing or howling display call uooooh, given by a single bird or a pair in duet, by night or during the day, and often from cover. Long sequences of up to 60 consecutive notes may be delivered during singing encounters between rival territorial birds. A great variety of quacking, clucking, hissing, rattling and purring calls are also given, with much individual variation.

The great Blue Heron, the largest such bird in North America, is quite adaptable and thrives in various wet habitats. Silent, patient, and often motionless, this majestic bird always makes a spectacular sight. Thanks to its specially shaped neck and extremely good night vision, this wading bird is a quick and skilled fish predator. Since the great Blue Heron accumulates toxins in its body, researchers use it as an indicator of dangerous contaminants in local wetlands.

The common Raven is one of the most ubiquitous species of birds and is revered for its high intelligence. These birds prefer open habitats, but can be found in nearly all environmental conditions besides rainforests. As a social species, some subspecies of common Raven have been known to have 15 to 33 different categories of calls!

The american Robin is the most common, and largest, thrush in North America. It's a bird of striking colors, including its vibrant, red-breasted plumage and pale blue eggs. It likes to feed on summer fruit and berries, but worms play an important role in its diet as well. This songbird is a state bird of Connecticut, Michigan, and Wisconsin. Its cheery song is considered one of the first signs of spring.

Don’t be surprised to see bufflehead disappear in the water. It returns to the surface to feed. This duck is often seen in lakes, reservoirs, and bays. The duck often uses old woodpecker holes for nesting but can also be lured to backyards with a nesting box placed close to trees.

Steller's Jays are loud, large jays that live mostly in evergreen forests. Their "song" is a horrible screeching call, but they are also great mimics that can copy the sounds of other birds, dogs, cats, chickens, etc. Notorious nest-robbers, they are well-known for attacking and killing small adult birds, nestlings, and taking off with other birds' eggs.

The spotted Towhee is a large sparrow found in sunny, open forests and recognizable by its distinctive two-footed hop. A ground dweller, it scratches the ground in search of food. Regarded as an extremely vocal bird, its song varies according to geographical location. During the breeding season, the male spends more than 70% of its mornings singing, trying to attract the female.

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.