<< Previous Next >>

Wrinkled Hornbill


Wrinkled Hornbill
Photo Information
Copyright: Peter van Zoest (PeterZ) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5137 W: 166 N: 13121] (49139)
Genre: Animals
Medium: Color
Date Taken: 2012-07-24
Categories: Birds
Camera: Nikon D300, AF Nikkor 70-300mm f4-5.6 G, Digital RAW
Exposure: f/5.6, 1/640 seconds
Details: Tripod: Yes (Fill) Flash: Yes
Photo Version: Original Version
Date Submitted: 2012-10-07 7:00
Viewed: 2384
Points: 56
[Note Guidelines] Photographer's Note
Scientific name: Aceros corrugatus
Family: Bucerotidae
Order: Coraciiformes
Class: Aves

PHYSICAL CHARACTERISTICS:
Wrinkled hornbills are medium-sized birds about 65-75 cm in height. They have black plumage and a white or yellow stained tail with a black base. Their wings have ten rounded primaries that allow air to go through creating a loud whooshing sound that some say sounds like a train or a storm. Males have yellow feathering on their inflatable throats, chests, and face. Blue skin covers the eye area. Females do not have yellow coloring on their chest or face, but they have blue skin that covers the face and throat area. Their bills are very large and yellow with a casque that looks like an extra beak. The casque is curved with ridges and sits on top the bill. A males casque is usually red or orange in color and females have a slightly smaller, yellow casque. Hornbills get their name from this unique bill. The bill is used to grasp and toss insects and fruits in the air to eat. Other uses for the bill include helping to build and maintain the nest, aiding in defense against poisonous snakes and other predators, sound reception, and it can be used to determine their age. The bill is very powerful because it is fused to the cranium, which in turn articulates with the fused upper vertebrae. This creates a pickax-like beak that is very useful for the young to peck out of the nest.

DISTRIBUTION and HABITAT:
Hornbills are usually found in the evergreen forests of the lowlands, up to an altitude of 1000 meters. They can be found in Thailand, Malaysia, and Borneo. The distribution of hornbills can be correlated with the characteristics of the forests such as large trees with natural tree cavities used for nesting and fig-tree density for food. For that reason, hornbills are more likely to be found in unlogged forests.

BEHAVIOR:
The monogamous Wrinkled Hornbills are usually found in pairs or in small groups. They are not aggressive and are sometimes clumsy in flight. They have deep echoing calls that sound like harsh kak-kak or deep rowwow or wakowwakowkow and calls can be heard from miles away. They have a life long relationship like married couples and usually breed during rainy seasons when moist soil is available to build nest walls. They do not have the typical bird nesting behavior. Instead of building nests out of twigs, they find a tree hole. The hole is constructed by a woodpecker pecking a hole in the tree. Eventually fungus will grow and enlarge the hole. Bees are attracted to the hole and use the hole to make honey. The honey attract a bear that uses his claws to dig out the honey, further enlarging the hole, making it a perfect nesting site for the wrinkled hornbill. After finding a good nest hole, the female will do most of the nest building by blocking the entry of a tree cavity with a plaster made with mud, droppings, and regurgitated food. The male will bring all the materials needed and finish the outer wall where the female can no longer reach. The main purpose of this wall is to protect the eggs from predators such as monkeys, and snakes. A small hole is left so the male can feed his family, and the female stays locked in the nest with the eggs during incubation period. The incubation period is usually 28-30 days. After a few months the female will break out of the nest, and the chicks will rebuild the wall and continue to be fed by the male until they are ready to leave the nest.

DIET:
Hornbills eat mostly fruits with numerous small fine seeds such as figs, and small animals such as frogs, lizards, snails, arthropods and young birds. During the nesting period, the male will regurgitate up to 150 figs to feed to his family. These birds do not rely on drinking water because they get water from their food. If the male brings the same food, the female will throw the food back suggesting that he find something else. If the male were never to return, his mate and chicks would starve to death.

REPRODUCTION and GROWTH:
Breeding is usually during the rainy season of December and January. Nest holes are usually located 40-50 meters above ground. After a pre-laying period of 4-6 days, the female will lay an average of two eggs. She can lay extra eggs if the eggs are lost. After a month of incubation, the chicks will hatch. They have pink skin that will turn purple in about 10 days. This is when the female breaks out of the nest, and the male continues to feed the chicks. The chicks will mature and leave the nest after another 65-73 days. The whole nesting cycle takes about four months.

CONSERVATION STATUS:
Wrinkled Hornbills are common in North Sarawak, Brunei, and South Sumatra, but are rare in Peninsular Malaysia. In Thailand, they are considered an endangered species. Their near extinct status is from the widespread destruction of the rain forest, the lack of suitable breeding sites, and from being hunted. In Northern Borneo hornbills are hunted for their tail feathers that are used to make traditional costumes for ceremonies. Villagers will pay a high price for a baby hornbill and this trade contributes to the continued decrease of these birds. There are organizations that have adoption projects to protect these birds from being hunted. Wrinkled Hornbills have the largest number of individuals in captivity for the hornbill family, as listed in the North American regional studbook.

Source: www.honoluluzoo.org

This photo is taken in bird park Avifauna.

Marco2010, maaciejka, marius-secan, goatman04, amanengone, josediogo1958, anel, bungbing, pierrefonds, MMM, CeltickRanger, M_Detay, Chiza, jusninasirun has marked this note useful
Only registered TrekNature members may rate photo notes.
Add Critique [Critiquing Guidelines] 
Only registered TrekNature members may write critiques.
Discussions
None
You must be logged in to start a discussion.

Critiques [Translate]

  • Great 
  • nagraj Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1618 W: 106 N: 3208] (15166)
  • [2012-10-07 7:08]

Hi,
Beautiful species, very colorful and fine viewpoint for this portrait. tfs.
nagraj.v

Hello Peter,
Curious bird with a big beak. This beak needs to be light but strong. Super portrait.
Regards
Lucja

barthatibor
Hello Peter,
Amazing bird and great portrait Peter.Very good compozition,wonderful colours and inpressive sharpness.
Regards,Tibi

Hallo Peter
Super mooi opname zo op de paal
veel details en super mooie kleuren
Leuke compositie
bedankt groet lou

Ciao Peter, great capture of fantastic bird, wonderful bright colors, fine details and splendid sharpness, very well done, my friend, ciao Silvio

Ciao Peter.
Splendida immagine di questo uccello multicolore,eccellente nitidezza,con notevoli dettagli splendidi i colori col le loro sfumature molto bella complimenti.
Ti auguro una buona settimana ciao Marco.

Hi Peter,
beautiful presentation. Great composition. Perfect sharpness and details.
Thanks for sharing,
Maciek

  • Great 
  • siggi Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3097 W: 109 N: 12399] (52850)
  • [2012-10-07 10:23]

Hello Peter.
It is a beautiful bird, that you have captured with sharp details and very good light. I like the composition as well.Best regards Siggi

Hello Peter,
As usual another lovely scene with a wonderful bird species.
The colors and details are excellent. Very nice composition and POV.
Outstanding WB....I like the superb natural colors and this amazing and unusual bird.
Thanks for sharing!
Marius.

  • Great 
  • lousat Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 6507 W: 89 N: 15620] (65341)
  • [2012-10-07 11:12]

Hi Peter,the perfect pose for a magnificent capture,and the best light too,to create this metallic reflections on the plumage and to take so well the colors,perfect details too.Have a nice week and thanks,Luciano

Hello Peter
Amazing bird and nice photo with very good composition and fantastic colours.
Regards,
Christodoulos

Hello Peter,
A fantastic close-up with beautiful coloration, details & pose. Very nicely composed & presented with an attractive POV. Great work & TFS. Regards & best wishes!

Umar

Cia Peter. An interesting specie here. Very good managment of light and colours. Details are very good too.

Roberto

Hello Peter.

Thank you for the photo of this Aceros corrugatus.

Very good composition of the picture.
Good point of view showing us many details of the bird.
Excellent sharpness and approprieted depth of field, with a lovely green background on wich the black color of the bird appears very well.
Colors very natural and properly saturated.

Thank you for the sharing.

See you later in Treknature for other pÓctures.

Best regards.

Philippe.

Hello Peter
Excellent photo, brilliant light, nice pose and good eye contact. Very good detail and colours.
Interesting bird, nice to see.
regards yiannis

hello Peter.
a great picture. nice colour and composition.
perfect sharpness and taken from a good angle.
best wishes,
samiran

Hello Peter
fantastic picture excellent sharpness and colors, congratulations beautiful
Hello Vanni

Ciao Peter
Grande scatto dai colori caldi e dettagli super complimenti sembra una cartolina
Ciao Nico

Hello Peter,

An impressive beak on that fellow...!
Seems like he is controlling the surroundings from his elevated point of view, great pose and a fine profile portrait...
Sharp fine details, bright light produces rich colours!

Greetings,
Pablo -

Bom dia Peter
Wonderful species and beautiful capture.Great POV and composition.Wonderful colurs and great sharpness.Hard light conditions may I say (1/640,f/5,6,ISO?,flash).I envoy Your bird park.TFS.
have a good day!
Best regards
J.Diogo

  • Great 
  • anel Gold Star Critiquer/Gold Note Writer [C: 3053 W: 3 N: 8715] (40574)
  • [2012-10-10 4:56]

Hello Peter,
A special bird this Wrinkled Hornbill with his massive beak and the white tail contrasting with a black plumage. Good lateral pose too. The light-management could have been slightly better, not easy anyway with these colors.
Kind regards
Anne

Hello Peter,
A wonderful species, good lighting, very well exposure, great details sharpness and lovely highlighted eye, a very well captured,
Thanks for sharing and have a nice day,
Best Regards,
Bungbing.

Hi Peter,

The bird is well placed in the frame. The point of view is showing the details and colors of the Wrinkled Hornbill. It is clear and precise. The good luminosity is bringing out the colors. Have a nice day.

Pierre

  • Great 
  • MMM Gold Star Critiquer/Gold Note Writer [C: 1114 W: 0 N: 2546] (11425)
  • [2012-10-11 5:29]

Hi Peter
Another amasing capture.Good pov and as usual razor sharp image.Amasing plumage details with great colors and light.The text is also very interesting .
TFS Michel

Hello Peter

Excellent close-up photo of this Hornbill,
fine POV and framing, beautiful light,
excellent focus, sharpness, details, TFS

Asbed

Hi,
Nice guy and great details.
Well done, congratulation.
Chers.
Michel

  • Great 
  • Chiza Gold Star Critiquer/Gold Note Writer [C: 133 W: 0 N: 474] (5351)
  • [2012-10-27 13:12]

Hola Peter, que belleza de ave y de foto, bien capturada en su entorno, magnŪfca luz y color que permite disfrutar de todos los detalles de esta bella especie...saludos.

great capture, great shot for this beautiful bird Peter, congrats !

un saluto, tino

Hello Peter,
Beautiful capture with great sharpness and details,nice composition and clarity of colours.
TFS and my regards_Joy

Hello Peter.
Beautiful hornbill perched well on that wooden pole. Lovely light and vivid exposure of the details.
Regards,
Jusni

Calibration Check
















0123456789ABCDEF