Cape Bulbul vs Sooty-Headed Bulbul

Cape Bulbul

Pycnonotus capensis

Also known as: Cape Geelgat

How to recognise a cape bulbul?

General appearance

The Cape Bulbul, known scientifically as Pycnonotus capensis, is a bird species endemic to the Fynbos biome in South Africa. It is relatively small-sized about 20 cm long, distinguished by its glossy black plumage with an olive-yellowish underbelly. This small bird has a neat black crest, a dark brown eye surrounded by a narrow white eye-ring, and a long slender bill. It's characteristic tail is bulbous and displays prominent white tips and edges.

Male vs female

Male and female Cape Bulbuls appear identical with no significant sexual dimorphism. Both sexes share the same greenish-yellow underparts and distinctive olive-black upperparts. Differences in size or colour can't be reliably used to distinguish males from females.

Juvenile

Juvenile Cape Bulbuls resemble the adult birds but their plumage is less glossy. Additionally, the white edges on the feathers of their wings and tails are broader than in adults. Over time, as they mature, they acquire the glossy adult plumage and their white feather edges become as thin as those of mature birds.

Size

7.5 - 8.3 in/1.0 - 1.7 oz

Habitat

Primary habitat

The Cape bulbul primarily inhabits shrublands and fynbos vegetation of South Africa's southwest coastal region.

Additional range

Additionally, it also occupies broad-leaved woodland and urban gardens, adapting well to domestic or urban environments.

Range Map

What do Cape bulbuls like to eat?

Natural diet

The Cape bulbul primarily feeds on a variety of fruits, berries, and insects. Common fruits include figs and other soft, fleshy fruits. They also consume small invertebrates such as caterpillars, beetles, and ants, which provide essential proteins. The Cape bulbul's diet is opportunistic and may vary seasonally, taking advantage of available resources.

Bird feeders

At bird feeders, the Cape bulbul may consume offerings such as sliced fruits, especially bananas and apples. They are also attracted to nectar solutions, similar to those provided for sunbirds. Occasionally, they may sample bits of suet or even small seeds, though they primarily prefer fruit-based foods.

There's more to learn about Cape Bulbul

View full details

Sooty-Headed Bulbul

Pycnonotus aurigaster

How to recognise a sooty-headed bulbul?

General appearance

The Sooty-Headed Bulbul is a medium-sized bird, approximately 20 cm in length. The principal characteristic of the specie is its black-colored head, leading towards the nape. The color gradually transforms into a smoky grey down the back, while the underparts, including the chest, belly, and undertail, are creamy-white. The specie has a pointed black crest, a conspicuous white iris around the eyes, and stout, medium length, black bill. There are no distinct seasonal variations in the appearance.

Male vs female

Both males and females look almost identical, making it particularly challenging to distinguish them. Both sexes share the identical characteristic blacks, grays, and whites coloring. The voice might be helpful in distinguishing between the sexes, as typically males have a louder and more varied song than females.

Juvenile

Juvenile Sooty-Headed Bulbuls are discernable thanks to their more muted coloring. They exhibit duller hues, lacking the sharp contrast between the black, grey and white seen in adults. They don’t have the pointy crest feature until they attain maturity. Their iris is brownish as compared to the stark white in adults.

Size

7.5 - 8.3 in/1.4 - 1.8 oz

Habitat

Primary habitat

The sooty-headed bulbul primarily inhabits subtropical and tropical moist lowland forests, shrublands, plantations and rural gardens.

Additional range

Its range extends from eastern India and Bhutan, throughout Southeast Asia, to Java and Bali. It has adapted to urban environments and can also be found in heavily degraded former forest.

Range Map

What do sooty-headed bulbuls like to eat?

Natural diet

The sooty-headed bulbul primarily feeds on a variety of fruits, which constitute a major part of its natural diet. Commonly consumed fruits include figs, berries, and other small, soft fruits available in its habitat. It also eats nectar from flowers, which provides essential energy. Insects, such as caterpillars and beetles, are part of its diet, particularly during the breeding season when additional protein is crucial for chick development.

Bird feeders

At bird feeders, sooty-headed bulbuls are attracted to offerings that mimic their natural diet. They enjoy fruits like sliced bananas, apples, and papayas. Additionally, they might be seen consuming nectar from feeders, particularly those designed to attract nectar-loving birds. While not their primary choice, they may occasionally accept seeds or small pieces of bread offered by bird enthusiasts.

What does a sooty-headed bulbul sound like?

The sooty-headed bulbul is known for its melodious and varied vocalizations. Its typical call, often heard at dawn, is a rich, bubbly 'splink-splink' or 'piu-piu' sound. The bird's song is a loud, fluting whistle, often with complex combinations of notes and mimicry of other birds. Singing is mainly performed by males, and it can be continuous, rhythmic, or broken into shorter phrases.

Call

Audio by Marc Anderson

/ CC BY-NC-ND 4.0

Song

Audio by Marc Anderson

/ CC BY-NC-ND 4.0

There's more to learn about Sooty-Headed Bulbul

View full details

Cape Bulbul

Tap To compare

Sooty-Headed Bulbul

Cape Bulbul

Pycnonotus capensis

Also known as: Cape Geelgat

General appearance

The Cape Bulbul, known scientifically as Pycnonotus capensis, is a bird species endemic to the Fynbos biome in South Africa. It is relatively small-sized about 20 cm long, distinguished by its glossy black plumage with an olive-yellowish underbelly. This small bird has a neat black crest, a dark brown eye surrounded by a narrow white eye-ring, and a long slender bill. It's characteristic tail is bulbous and displays prominent white tips and edges.

Male vs female

Male and female Cape Bulbuls appear identical with no significant sexual dimorphism. Both sexes share the same greenish-yellow underparts and distinctive olive-black upperparts. Differences in size or colour can't be reliably used to distinguish males from females.

Juvenile

Juvenile Cape Bulbuls resemble the adult birds but their plumage is less glossy. Additionally, the white edges on the feathers of their wings and tails are broader than in adults. Over time, as they mature, they acquire the glossy adult plumage and their white feather edges become as thin as those of mature birds.

Size

7.5 - 8.3 in/1.0 - 1.7 oz

There's more to learn about Cape Bulbul

View full details

Sooty-Headed Bulbul

Pycnonotus aurigaster

General appearance

The Sooty-Headed Bulbul is a medium-sized bird, approximately 20 cm in length. The principal characteristic of the specie is its black-colored head, leading towards the nape. The color gradually transforms into a smoky grey down the back, while the underparts, including the chest, belly, and undertail, are creamy-white. The specie has a pointed black crest, a conspicuous white iris around the eyes, and stout, medium length, black bill. There are no distinct seasonal variations in the appearance.

Male vs female

Both males and females look almost identical, making it particularly challenging to distinguish them. Both sexes share the identical characteristic blacks, grays, and whites coloring. The voice might be helpful in distinguishing between the sexes, as typically males have a louder and more varied song than females.

Juvenile

Juvenile Sooty-Headed Bulbuls are discernable thanks to their more muted coloring. They exhibit duller hues, lacking the sharp contrast between the black, grey and white seen in adults. They don’t have the pointy crest feature until they attain maturity. Their iris is brownish as compared to the stark white in adults.

Size

7.5 - 8.3 in/1.4 - 1.8 oz

There's more to learn about Sooty-Headed Bulbul

View full details

How to tell the Cape Bulbul from the Sooty-Headed Bulbul

Visual differences

The Cape Bulbul features a glossy black crest, dark brown eye with a narrow white eye-ring, olive-black upperparts, and a greenish-yellow underbelly. In contrast, the Sooty-Headed Bulbul has a black head, gray back, creamy-white underparts, and a conspicuous white iris. Both birds are approximately 8 inches long, but the Sooty-Headed Bulbul weighs slightly more. The Cape Bulbul's beak is long and slender, while the Sooty-Headed Bulbul has a stout, medium-length beak. The Cape Bulbul displays distinctive white-tipped tail edges, unlike the Sooty-Headed Bulbul.

Key differences and behavior

Cape Bulbul and Sooty-Headed Bulbul exhibit diverse behaviors and habitats. The Cape Bulbul is endemic to South Africa’s fynbos, thriving in shrublands, woodland, and urban gardens, while the Sooty-Headed Bulbul inhabits subtropical and tropical regions across Southeast Asia and adapts to urban areas. Both species form pairs or small flocks, but Sooty-Headed Bulbuls are particularly noted for their cheerful songs. Cape Bulbuls perform vocal and physical courtship displays, building nests in dense shrubs, whereas Sooty-Headed Bulbuls engage in aerial and vocal displays, with nests in dense foliage. Diets for both include fruits and insects, though Cape Bulbuls are more opportunistic by season, and Sooty-Headed Bulbuls focus on nectar and additional insects during breeding. Both species’ parental care involves feeding chicks with fruits and insects, yet the clutch size and exact nesting materials slightly differ.