The Red-billed Oxpecker
(Buphagus erythrorynchus)
Bird of the year 2025
You will never guess where this photo was taken!
This single bird was spotted in the late afternoon on the back of a big Nyala Bull at the Plett Nature Reserve on the 28th of September by John Home and Patrick Raymond while on their way to the Bitou Birding Festival Fundraiser dinner. A very rare bird to be spotted in the area.
MEMBERS’ ARTICLES
The Lily and the Lily-trotter
by Ian Thomas
Water lilies have a number of interesting adaptations to their watery home. Here we will focus on the upper surface of the leaf in particular, the stomata or tiny pores that are found there. These pores allow for the exchange of gases and water vapour between the plant and the environment:
The upper leaf surface has a water-repellent waxy layer. This helps the leaf to float, but also serves to prevent the stomatal pores from becoming clogged with dirt and grime. Any water that gets onto the surface rolls around cleaning up dirt as it moves. Clean grime free leaves breathe better and the plant is able to photosynthesise effectively. *
When an African Jacana or lily-trotter walks across a lily pad searching for insects, some water splashes off its toes onto the leaf. And because the weight of the bird usually causes the lily pad to sink slightly, water pours over its edges and through the split. So the bird’s hunting success is boosted from the support it gets from the water-lily pad and the plant benefits from a cleaner more competent leaf.
*SANBI article on Nymphaea nouchali var. caerulea
Photos above: African Jacana by Ian Thomas
Lappet-faced Vulture
by Ian Thomas
Lappet-faced Vultures throw a big shadow – 6.5kg and a wingspan of 2.8m. They have massive bills and powerful feet and have been seen feeding on freshly killed small mammals, birds, and reptiles. Some of these may have been road-kills or pirated from other raptors, but many people believe that they occasionally attack live animals.
However, they are mainly scavengers and seem to prefer large carcasses like buffalo, eland and elephant. And even though they can dominate other vultures, they often wait around the edges of the throng or ‘wake’ – the collective noun for vultures that are on the ground feeding at a carcass.
When all the other species of vulture are finished feeding or their numbers on the carcass have notably diminished, they move in. Using their massive bills they feed on skin, cartilage, tendons and ligaments which the other vultures are not equipped to tear off. A full crop can contain up to 1.5kg of meat which is around 23% of the weight of a 6.5kg adult.
Photo: Lappet-faced Vulture by Ian Thomas
Olive Woodpeckers On The Nest
by Patrick Raymond
A couple of keen local birders were fortunate enough to spend a couple of hours, in some cases days, observing a pair of Olive Woodpeckers at a nest feeding their young.
As is typical of the species, they nest in an excavated hole in a tree, usually a soft wood. Olive Woodpeckers are usually monogamous and will incubate the eggs for about 15 days after which both adults actively feed the chicks during the day. According to Roberts, in the early stages of feeding they will visit the nest about 1.8 times per hour and this rate will increase to 7,5 times per hour in the latter phases of the chicks development.
Olive Woodpeckers feed by foraging and probing in trees from which they extract a fair variety of insects, grubs and larvae. While observing the nest we could see that both the parents were involved with the feeding of the young and over time collected and fed a thoroughly un-appetizing smorgasbord of “peculiar creatures” for their youngster. (Refer to pictures).
Clearly this regular supply of creatures did the trick as the youngster fledged after about 25 days. We stopped observing the nest site after fledging, but apparently the “baby” would have stayed in the area for about three months before dispersing.
Photos: Olive Woodpeckers by Patrick Raymond
GREAT ACHIEVEMENTS BY SOME OF OUR MEMBERS THIS YEAR
1. Chanel Gemae Visser
Chanel Hauvette Visser a member of the Club and Field Ranger with Cape Nature was recently awarded “THE BEST MARINE RANGER IN AFRICA” by the Game Rangers Association of Africa.
The citation reads as follows “Chanel leads marine conservation at Robberg Nature Reserve, managing hundreds of animal strandings annually, biodiversity monitoring and community engagement “.
2. DR. MARK BROWN
Mark Brown has co-authored a magnificent coffee table book called ”Roberts Sunbirds and Sugarbirds” The photographs, illustrations, drawings and details about these birds is amazing. The book is available at all good Book Stores.
3. MIKE BRIDGEFORD
We all know Mike for his wonderful presentations at Club dinners. He has unbelievable knowledge about birds and is a great photographer. This year he saw his 850th Southern African bird species, a Ross’s Turaco. This is an amazing achievement which not many “twitchers” can lay claim to.
Photo: Ross’s Turaco by Mike Bridgeford
BirdLife SA Birding Big Day:
The Club entered a team in this year’s BirdLife South Africa Big Birding Day event which took place on Saturday 7 December 2024. The team was entered in the 6km radius competition. Sadly only 126 species were seen or heard whereas in the past two years, a total of 149 and 153 species were recorded. The special bird of the day was the Maccoa Duck. The team was however placed 20th in South Africa which is not too bad.
Bird photos by John Home
CHAIRPERSON: Ann Mawer – 082 446 4200
VICE-CHAIRPERSON: Patrick Raymond – 083 377 9580
TREASURER: Darryl Harrison – 082 651 8985
SECRETARY: Pippa van Noppen – 082 878 6662
HONORARY PRESIDENT: Mike Bridgeford – 083 266 7634
COMMITTEE:
Newsletter Editor: John Home – 082 554 5002
Design and Layout: Stephan van Wyk – 072 554 3995