 The
Blue-winged Macaw (Primolius maracana) belongs to the family
Psittacidae. At 40 cm long, it was one of the largest parrots in
Argentina.
The historic distribution of the Blue-winged Macaw included
north-eastern, central, and south-eastern Brazil, eastern
Paraguay, and north-eastern Argentina. Globally, it is
considered a near threatened species.
Distribution in Argentina
In Argentina, the Blue-winged Macaw was widespread in the
province of Misiones, with numerous historic records at various
localities. In our study area, the species was common until
1970.
The Blue-winged Macaw is a large, noisy, conspicuous bird.
However, the past 20 years have produced no reliable records of
the species in Argentina. In five years of field work and
interviews with local people at many sites throughout Misiones,
we did not record this macaw. We believe that the Blue-winged
Macaw is probably extinct in Argentina.
Why did it disappear from Argentina?
In
Argentina, the Blue-winged Macaw was common in the 1950s, but
its population seems to have declined rapidly after that. We
think one of the main causes was lethal control by local farmers
who considered the Blue-winged Macaw a crop pest. To eliminate
this “pest” they used firearms, traps, and poison. Older farmers
from Tobuna told us they tried to shoot entire flocks in their
corn fields or when they came to the salt that had been spread
in the pasture for the cattle. Especies afectadas actualmente
por el control letal
Species currently affected by lethal control
Today, although it is against the law, many people still
practice lethal control of parrots in northern and central
Misiones. The Scaly-headed Parrot (Pionus maximiliani) attacks
corn and is frequently shot. Although this parrot is widespread
in Argentina, lethal control could lead to a local reduction in
the population. The endangered Vinaceous Amazon (Amazona
vinacea) does not usually affect agricultural crops, but it is
occasionally shot because of confusion with the Scaly-headed
Parrot. In many parts of Misiones, all parrots are thought to be
crop pests, so often any species seen near a corn field will be
shot.
What
are we doing?
- In schools, we show pictures of the Blue-winged Macaw
and use this bird as an example of a locally extinct
species. We talk about other species that will disappear if
we continue to hunt them, catch them for pets, and eliminate
their habitat. We ask local farmers if they remember the
Blue-winged Macaw and if they notice that any other species
are in decline.
- We ask what they think should be done to improve the
conservation of species they are interested in. We try to
encourage a feeling of pride and empathy for wild birds. .
What else should be done?
It
looks like it is already too late to help the Blue-winged Macaw
in Argentina. In Misiones, the species was declared a Provincial
Natural Monument by law 3455. Unfortunately, this law came too
late, and the Blue-winged Macaw disappeared from Argentina.
To avoid repeating this story with other species, national
and provincial governments should organize multidisciplinary
workshops to develop management strategies for species that
farmers consider agricultural pests. Then, these strategies
should be implemented and monitored.
It would be interesting to interview farmers in southern
Brazil and eastern Paraguay, to understand what happened to the
Blue-winged Macaw in those countries.
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