|
Anhinga anhinga >
 |
 |
|
The Samaan Grove Wetland System |
Wetlands Inhabitants
Waterfowl
by Kevin Kenny - Click images to enlarge |
|
One of the design objectives of this system of lakes, ponds and
wetlands was to create a wildlife reserve second to none on the
island. During the planning and consulting phase of the development,
there was much public concern over the effects that the development
would have on the existing environment and in particular in the
potential loss of wildlife habitat. We made a commitment to the
public that the development would become one of the best places
in Tobago to view wildlife. The objective of the development
was not to reduce habitat but to increase and improve it. |
|
With just a small part of the estate developed, the results are
very encouraging. Although many different waterfowl visit the
lakes, we are only covering the main resident population that
now make Samaan Grove their home. Much of the identification
information on the birds comes from the Richard ffrench book
"Birds of Trinidad & Tobago". |

Ducks in flight at Samaan Grove |
|
Waterfowl |
|
|
Black-belly whistling tree duck, Dendrocygna autumnalis.
We have just completed our second rainy season and have recorded
two different breeding pairs of tree ducks on the ponds. This
corresponds to their breeding season of June through December.
The largest clutch of ducklings (10) seems to have been bred
in the area SWW#6. Other than the local lizard "matte",
there are few natural predators and we believe that most of these
ducklings will survive to maturity. The second clutch was smaller
with only six ducklings. |
First family |

Mother and 10 ducklings at Samaan Grove |
In general, black-bellied tree ducks are tall long-legged and
long-neck birds. They have a black belly with a chestnut nape,
lower neck, chest and back. A chestnut cap tops the head with
a bright red/orange bill and a white-eye ring. The long pink
le gs
are easily observed while they are perched in the trees. They
stand 50-55 centimetres (20-22 inches) tall. They are vociferous
in flight uttering a whistling "wee-che-che." This
is when one can see the large white patch above their wings.
Pairs most often partner for life and share responsibilities
of incubation and brood rearing. |
|
Nests are usually located in tree cavities or on the ground
in grassy and marsh areas or under brush. Female black-bellied
ducks lay an average of 13-14 eggs. They commonly feed on grain,
seeds, insects and mollusks, as well as leaves and shoots found
in fields, drains and shallow water.
A lone black-belly in the afternoon
sun > |
|
|
They seem to love the golf course at Tobago Plantations where
their population has exploded. Flocks are seen feeding in the
short manicured lawns all over the estate. The photograph below
was taken in September 2004 at Samaan Grove and show a breeding
pair and eight large ducklings not yet able to fly but feeding
for insects in the freshly cut grass. Part of the problem facing
us in Tobago is that they have become so tame that during the
hunting season they make easy prey for legal hunters. |
 |
|
|
|
|
Anhinga anhinga. It is wonderful to see the Anhingas
swimming and catching fish in our lakes. They were among the
earliest visitors to our new lakes. They prefer the deeper areas,
probably because the fish are larger and it is easier to swim.
In the afternoons they can be seen drying their wings in the
sun. If startled they tend to dive into the water rather than
to fly off. |

Anhinga swallowing a small tilapia |
|
Since the construction of the lakes at both Angostura resorts,
the population seems to have grown. It is difficult to know if
they have bred on the estates as we have not seen any signs of
nesting nor have we seen any young. In November 2006 we counted
over 30 birds in the sky over the lake at Tobago Plantations |

Surfacing for a breath of air |
|
The Anhinga is about 70 centimetres (28 inches) long with
a wingspan of 120 centimetres (47 inches). It has a very long,
thin neck with a large pointed tail. It often swims with just
its head and neck above surface. The adult male has a black head,
neck and body with white plumes and edgings on wing coverts,
while the female has a tan head and neck with a black body, white
plumes and edgings on wing coverts. It is sometimes confused
with the Cormorant which has a hooked bill, shorter tail and
neck. |

Drying her wings after foraging under water
(Also see the cover photo) |
|
|
|
|
|
Common moorhen/Gallinule, Gallinula chloropus.
We have counted up to five different pairs at one time in the
lakes. They are the most common waterfowl found at Samaan Grove
which indicates they have a preference for the environment we
have created. |
We have observed four sets of young so far with clutches of two
to three chicks. All of these were seen in the area of SWW#6.
They are still very wary of people and tend to hide in the reeds
whenever approached.
Breeding took place in December 2006. At Tobago Plantations they
have become quite tame; at Samaan Grove when approached the mother
will encourage the chicks to run into the bush behind SWW#6.
It may be that this is where the nests were built. We have only
seen one abandoned nest in the rushes and are not sure which
species built it. |
|
It is a distinctive bird, with dark plumage apart from the
white under-tail, yellow legs and a red facial shield. The young
are browner and lack the red shield. It has a wide range of gargling
calls. This species will consume a wide variety of vegetable
material and small aquatic creatures. They forage while swimming,
sometimes upending to feed or walking through the marsh.
The nest is a roofed basket built on the ground in dense vegetation.
Eight to 12 eggs are usually laid, which are incubated for about
three weeks. More than one brood may be raised in a year. Both
parents incubate and feed the young. It will be interesting to
learn if fewer eggs are laid or why fewer eggs hatch at Samaan
Grove since we see only two or three chicks.
This bird is common and widespread. It loves the habitat being
created at all of the large integrated resorts in Tobago. |
Previous Page | Next Page
Introduction &
Index
WGI ONLINE
Journal Table
of Contents
|