The latest update
of the ICUN Red List of Threatened Species shows that, of the 63,837 species
assessed to date, a worrying 19,817 are threatened with extinction. Along with
its partner organisations, IUCN is calling upon world leaders to commit to
halting biodiversity loss as a matter of urgency. Food, medicine and clean
water are all essential for the wellbeing of humankind, yet animals and plants,
key providers of these vital elements, are currently in rapid decline. They need our help.
The
Grey-Crowned Crane
The Grey-Crowned Crane - Balearica
regulorum - has the most impressive plumage. There are only between 3000 to
4000 left in South Africa.
It is a near-endemic to Southern Africa.
Description
The body of the Grey Crowned
Crane is mainly grey. The wings are also predominantly white, but contain
feathers with a range of colours. The head has a crown of stiff golden
feathers. The sides of the face are white, and there is a bright red inflatable
throat pouch. The bill is relatively short and grey and the legs are black. The
sexes are similar, although males tend to be slightly larger. Young birds are
greyer than adults, with a feathered buff face.
Call
It has a booming call which
involves inflation of the red throat pouch. It also makes a honking sound quite
different from the trumpeting of other crane species.
Food
It feeds on insects and other
invertebrates, reptiles, small mammals, as well as grass seeds.
Breeding
The Grey Crowned Crane has a breeding
display involving dancing, bowing, and jumping. The nest is a platform in tall
wetland vegetation. It lays a clutch of 2 to 5 eggs. Incubation is performed by
both sexes and lasts 28 to 31 days. Chicks fledge at between 56 to 100 days.
Birdwatching
Ask Aves Birding
Tours/Safaris/Adventures to create a tour for you or book on one of the
following Aves scheduled tours: -
Aves Eastern Cape Birding
Tour / Safari /Adventure.
Aves Highlands / Tembe Birding Tour / Safari /
Adventure.
Aves KZN Birding Tour/Safari/Adventure.
The
Wattled Crane
The Wattled Crane - Bugeranus
carunculatus - is by far the most endangered crane species in South Africa with
only 240 left. They are the most wetland-dependent of Africa’s
crane species and are exceptionally susceptible to disturbance while nesting in
wetlands, and will easily desert a nest if disturbed.
Description
It is the largest crane in Africa with the back and wings ashy gray. The feathered
portion of the head is dark slaty gray above the eyes and on the crown, but is
otherwise white, including the wattles, which are almost fully feathered and
hang down from under the upper throat. The breast, primaries, secondaries, and
tail coverts are black. The secondaries are long and nearly reach the ground.
The upper breast and neck are white all the way to the face. The skin in front
of the eye extending to the base of the beak and tip of the wattles is red and
bare of feathers and covered by small round wart-like bumps. Wattled Cranes
have long bills and black legs and toes. Males and females are virtually
indistinguishable although males tend to be slightly larger. Juveniles have
tawny body plumage, lack the bare skin on the face, and have less prominent
wattles.
Call
Wattled cranes are usually quiet
birds. Their calls are high-pitched and include a far-carrying kwaamk
bugle-call.
Food
The wattled crane mainly eats
aquatic vegetation, but also eats tubers, rhizomes, seeds, small reptiles,
frogs and insects. It often submerges its entire head under water when feeding.
Breeding
Wattled cranes breed only in
wetlands. Breeding pairs maintain a territory, so that nests are always at
least 500m apart. The nest is a large mound of grasses and sedges placed on a
tuft, surrounded by open water. One or two eggs are laid, but only one ever
hatches, the other being abandoned. Incubation period is 33-36 days. Fledging
period is 135 days. Chicks reach adult height and can fly by four months, but
are not sexually mature for 4 to 8 years.
Birdwatching
Ask Aves Birding
Tours/Safaris/Adventures to create a tour for you or book on one of the
following Aves scheduled tours: -
Aves Highlands / Tembe Birding Tour / Safari /
Adventure.
Aves KZN Birding Tour / Safari /
Adventure.