
Anodorhynchus hyacinthinus ..............................................By Gideon Scheepers
Description
The
beautiful Hyacinth Macaw is a rich cobalt blue with a bright yellow
bare facial patch around the huge bill. They also have a yellow periopthalmic
ring around the eye. The wings are a darker blue on top and blackish-blue
underneath. The feet are grey and bill is black. The hen is the same
as the male but slightly smaller, youngsters have a shorter tail and
paler upper mandible. These parrots are 100 cm in length.
Range & Habitat
They
are found in northern Brazil, Rio Tapajós and south across central
and southern Brazil from Piau¡ and southern part of Maranhãos
across Goiás, into eastern Bolivia and northeastern Paraguay.
They frequent open and semi-open areas with tall trees, savannah with
palms and groups of tall trees. They are rare in rain forests. Hyacinths
are common in very few areas, and are regarded as endangered, with an
estimated population possibly less than 3000 birds. They are usually
seen in pairs and small family groups of up to 12 birds Hyacinth macaws
roost on tall Acrocomia palms or trees in open woodland and will gather
early in the morning on dead trees to preen before flying off to eat,
returning to roosting trees towards evening; They will forage on the
ground.
Diet in Nature
They
eat a variety of nuts, fruit, berries, and specializes in different
palm fruits including Acrocomia lasiopatha, Astryocaryum tucuma, Attalea
phalerata, Acrocomia aculeata, Syagrus commosa, Attalea funifera; in
addition ripe and unripe fruits (figs). With their huge beaks they can
crack extremely hard nuts, which gives them an added advantage over
other macaws, which can't crack these nuts. They have also been observed
eating palm nuts which have passed through the bowels of cattle in pastures.
Breeding in Nature
Their
natural breeding season starts in about July through to December. The
pair will seek a nest hollow in dead or living trees and palms about
4 to 14 m off the ground. These hollows are on average 50 cm in diameter,
and about 30cm deep from the entrance. The hen will then proceed to
lay a clutch of 1 to 2 eggs measuring about 53.0 x 40.0 mm usually only
rearing a single youngster
Housing in Aviculture
They should be given a large flight up to 10 m long, made of strong
mesh as those beaks
can
undo most meshes. They are noisy birds and this must be taken into consideration
when constructing an aviary. They should be supplied with very sturdy
perches and the nestbox should also be robust, ideally a 44 gallon (210
l) metal drum should be used, but it must be noted that the chicks and
parents in the nest in the height of summer can cause a lot of heat,
causing the chicks to overheat and this can result in death.
Breeding in Aviculture
This
seems to be achieved regularly these days, but much less often than
other large macaws. They will mostly start breeding in spring. They
will become very aggressive towards the keeper just before the onset
of laying. The hen will lay a clutch of 1 or 2 eggs and incubate the
eggs alone for 28-29 days .The young fledge at around 90 days old, but
will remain with the parents for a long time.
Mutations
I have heard of an Lutino mutation (which is
white with yellow around the eyes and bill), if you know of any please
send a photo with a description and some history to info@thomasriver.co.za
Data
· Clutch size..................1 to 2 eggs
· Incubation period..............28-29 days
· Fledging period..............13 weeks
· Ring size...............14 mm internal diameter ring
· Adult length..............100 cm
· Adult weight.............about 1200g - 1650 g