The rare sisserou bounces back
Battered by hurricanes,
Dominica’s national bird reclaims some old territory,
with a little help from its human friends
ONE MORNING early last December, Paul Reillo, a Florida
biologist, and Stephen Durand and Randolph "Ronnie" Winston,
rangers in the Forestry and Wildlife Division of Dominica,
parked their Nissan four-wheel-drive truck at the end of a
rocky trail on the south end of the tiny island and walked
into the rainforest.
 |
| Forest rangers Stephen Durand and Randolph
Winston and Paul Reillo, director of the Rare Species
Conservatory Foundation, with Dominica's Morne Trois
Piton National Park in the
background. |
For the next two hours the trio toiled up a sheer incline
in intermittent rain, battling dense vegetation and soupy
fog.
The hike up Morne Prosper, the near-vertical southern
boundary of the Morne Trois Piton National Park, is one of the
more grueling treks conservationists must make on Dominica
(pronounced “DOM-in-NEE-ka”) to study wildlife. But this time
Reillo, Durand and Winston didn’t mind. They had come to check
out something big.
Earlier in the year, another Dominican ranger, Roy Paul,
had returned from patrolling the area one day with a very
encouraging piece of news.
Paul had heard the unmistakable call of a sisserou.
Missing since 1979 It was a gratifying
development for Dominica and Reillo, director of the Rare
Species Conservatory Foundation, a small nonprofit scientific
organization based in Loxahatchee.
Dominica’s sisserou, or Imperial Amazon (Amazona
imperialis), had not been seen in Morne Trois Piton
National Park since 1979.
That year Hurricane David, the fiercest storm in the
recorded history of Dominica, had scoured much of the park’s
rainforest down to bare rock.
Biologists believed the storm left just 50 of the beautiful
purple-breasted birds in existence, most living on the north
half of the island on Morne Diablotin, the highest volcanic
peak in the eastern Caribbean at 4,747 feet.
Reappearance in Morne Trois Piton would mean there was a
larger number than thought of the sisserou, one of the rarest
Amazon parrots in the world. Combined with the recovering
northern population, there might be as many as 500 birds
total.
There was only one nagging question.
As the heaviest Amazon parrot, with males weighing almost
two pounds, the sisserou was a poor flyer, and it nested only
in established rainforest.
With 20 miles separating the surviving sisserous on Morne
Diablotin from Morne Trois Piton National Park, and little
mature rainforest even after two decades, how had the sisserou
managed to return?
A yodel and a trumpet blast At 11 a.m., the
hikers topped the ridge of Morne Prosper. They were in luck:
It was a crystal-clear day on the other side.
After establishing their location using a GPS device, the
men hunkered down to begin what was sure to be a long
vigil.
 |
| The purple-breasted sisserou is the largest and
perhaps most beautiful of the Amazon
parrots. |
Sisserous were secretive birds, almost impossible to track
in Dominica’s steep, dense rainforests. They didn’t forage on
the ground and if they felt threatened, they did not vocalize.
You could stand under one in a tree all day and not know it
was there until it flew away.
In their favor, the men were perched on a high ridge
overlooking the park. Stretched out below them were 10 miles
of deep, winding river valleys. With luck, they might see or
at least hear one or two sisserous, if they sat quietly for a
few hours.
It wouldn’t take that long.
Half an hour later, a familiar-looking green bird with
short, rapid wing beats emerged from a towering chatagnier, a
200-foot-tall rainforest tree with a crown that resembles a
head of broccoli.
Several more followed, and a sound Reillo describes as a
cross between a yodel and a trumpet blast echoed across the
valleys.
"There’s no parrot aficionado out there who has ever heard
anything like it," he says of the sisserou’s odd, haunting
call. "It sounds more like a song than a squawk, followed by a
‘weep, weep, weep, weep.’"
Reillo and the rangers spied four birds in all, and heard
five. They looked at one another and smiled.
"We said, ‘This is really good news.’ When you take into
account the physical exhaustion of getting to this location
and the difficulty of identifying them, whenever you see that
they’re doing well, you just sigh a big sigh of relief."
Some rainforest spared The sisserou, which flies
like a duck and needs a full-grown rainforest to survive, had
returned to Morne Trois Piton. But how?
Apparently secondary forest had bridged the valleys over
the years, allowing the bird to leapfrog from one small pocket
of surviving trees to the next.
Reillo estimates there may have been as many as 20
sisserous in the area that day, and an unknown additional
number in the 18,000 acres of Morne Trois Piton rainforest
beyond. Dominica needs more time to re-explore the area.
The equally good news is proof that conservation works,
says Reillo, whose organization specializes in assisting
“governments that are already doing a fantastic job trying to
protect their environment.”
"Dominica created Morne Trois Pitons National Park in 1975
and maintained it as an intact bioreserve. That enabled the
sisserou to rebound there."
A northern park, too January of 2001, just a
month after the Morne Trois Piton National Park sighting,
brought more good news for the sisserou.
After a two-year joint fund-raising campaign with Reillo,
the Dominican government established a second national park,
this one encompassing Morne Diablotin. Now the sisserou’s
habitat would be protected in its northern stronghold, too,
for a total of 25,000 national park acres.
 |
| Orange outlines show the locations of the small
northern and renewed southern populations of the
sisserou parrot on Dominica. |
Ironically, the happy milestone threatened Reillo’s
three-person, $150,000-a-year RSCF with extinction.
To help Dominica come up with the $1.086 million necessary
to purchase the final 1301-acre parcel of land to establish a
northern park, the RSCF raised $750,000 from private donors
and went $330,000 into debt.
"We put everything on the line to create Morne Diablotin
National Park," remembers Reillo, who donated his personal
life savings to the cause. "We broke the mold when it comes to
a nonprofit organization."
Close to bankruptcy last year, the RSCF has mostly
recovered, says Reillo.
And he would do it again.
"The sisserou is a flagship species representing the last
great oceanic rainforest in the Caribbean. It’s not important
how many dollars come from which people. We are here to make
sure that something tangible happens as often as we can make
it happen."
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