Blue-faced
Parrotfinch
FAMILY:
Estreldidae
GENUS: Erythrura
SPECIES: trichroa
OTHER
NAMES: Blue-faced Finch, Blue-headed Parrotfinch, Green-backed Finch,
Three-coloured Parrotfinch Tri-coloured Parrotfinch.
Description:
Medium
sized finch with striking green body plumage. Males body plumage is bright green
with dull scarlet upper tail coverts and rump. Tail is olive brown edged with
dull scarlet. The face and forehead is bright blue. The eyes and feet are brown,
and the bill is black.
Females resemble males, but are generally duller in
plumage colour. Only males sing. Immatures are a dull green al over, with a grey
bill.
This shy and elusive bird has only a small population in Australia
despite being widespread elsewhere. It is not often seen, but occurs in small
groups which generally forage on or near the ground. It is very fond of seeding
bamboos and is known to synchronise its movements with the flowering cycles of
these.
Length:
120mm.
Subspecies:
There
are no formally recognised Australian sub-species. However, there are a number
of extralimital subspecies which include: E. t. clara, E. t. cyanofrons, E.
t. eighhorni, E. t. modesta, E. t. pelewensis , E. t. pinaiae, E. t. sanfordi,
E. t. sigillifera and E. t. woodfordi.
Distribution:
East
Cape York Peninsula. Extralimital distribution: many of the islands north of
Australia including New Guinea. The extremities of its range include the
Caroline Islands in the north, Celebes in the west and the New Hebrides in the
east.
Habitat:
Tropical
rainforests, including ecotones between rainforest and grasslands, cultivations
and plantations.
Diet:
Ripe
and half-ripe seeds of grasses, Casuarinas and fruits (eg figs). This is also
substituted with a variety of insects from time to time.
In captivity, a good
quality finch seed mix is the mainstay of the diet. This should be supplemented
with greenfood (eg half ripened seed heads of grasses or most other herbs from
the garden such as Shepherd's Purse, Dandelion and Chickweed, or any vegetables
such as silverbeet, lettuce, etc.).
Many aviculturalists provide live food
(often mealworms) during the breeding season although others have had good
results without it. Lastly, it is important to provide birds with ample grit
(fine) and perhaps cuttle-fish where possible.
Breeding:
November
to April. The nest is usually made of moss and vines and lined with dead grass.
It is often located in the branches of a tree and dome shaped. The dome's
diameter is about 150mm and has an entrance tunnel of approx. 100mm.
In
captivity Blue-faced Parrotfinches will accept a nesting box or other receptacle
and will attempt to nest at almost any time of the year as long as it is warm
enough.
Courtship
Display:
Males
basically persue females until copulation is achieved, although they may
occasionally perform a short bobbing dance before commencing the chase. When
ready, the female will crouch on a perch whilst quivering her tail.
Sexual
Maturity:
Blue-faced
Finches become sexually mature and capable of breeding shortly after 9 months of
age.
Clutch:
4-6
white eggs (15mm x 10mm). Incubation period: 13 days. The young usually fledge
at around 21 days. In captivity, juvenile birds should not be reomoved from
their parents until about 4 weeks after fledging.
Mutations
and Hybrids:
There
are several known mutations for this species: Most members of the parrotfinch
family will crossbreed under the right circumstances. Some known hybrids
include: Blue-faced x Red-faced Parrotfinch, Blue-faced x Pin-tailed Parrotfinch
and Blue-faced Parrotfinch x Gouldian Finch.
There are several colour
mutations available: Lutino (green replaced with yellow, blue with white; Pied
(green splashed with yellow); and Grizzle Pied (each feather is partly yellow
and partly green, blue face usually replaced with white).
Suitable
Aviaries and Compatible Birds
For
breeding purposes Blue-faced Parrotfinches will be quite happy in suspended
cages or breeding cabinets. These should have at least the following dimensions:
700mm(long) x 400mm x 400mm. These birds are at their best in larger planted
aviaries. Such an aviary should provide plenty of shelter and should probably
have a roof over at least half its area.
Keeping in mind that these are
rainforest species, the Blue-faced Parrotfinches like to have shrubs and tall
grasses or bamboosin their aviary.
Blue-faced Parrotfinches will readily
share an aviary with most other finches (eg. zebra, painted, parrot, etc etc),
quail, doves and even neophema parrots.
Species
Specific Problems
This
species tends to be prone to viral and fungal infections