The Plight of the Picoplat
No
longer is the song of the Picoplat heard in the wild anywhere in Tobago or
Trinidad. Fetching high prices for their singing, they have been trapped to
‘local extinction in the wild.’ Birder
photographer Faraaz Abdool asks us to appreciate and protect all the birds of
Tobago. This week he looks at the wide-ranging family of tanagers; and asks us to take personal responsibility for
their well-being.
The family of tanagers consists
of some species that are extremely familiar to most of us. It is quite a large
family, comprising approximately 240 species of mostly brightly coloured birds
that are emblematic of the jungles of the New World. Some of the most
widespread species of birds belong to this family – although many species do
not carry the common name of “tanager.” Confusingly, there are other “tanagers”
that do not belong to this family. That however, is the subject of another
conversation altogether.
Red-legged Honeycreepers on a blooming immortelle. Photo courtesy Faraaz Abdool |
This family Thraupidae consists of the true
tanagers, honeycreepers, conebills, seedeaters, saltators as well as some
cardinals and finches. Collectively, T&T has 34 members of this family on record – most of
them are resident although a few species are migratory. They are distributed
generously in almost every habitat although their greatest concentration and
diversity occurs within forested areas.
Some may argue that the
greatest concentration of Bananaquits is outside the forests and on Tobago breakfast
tables. This tiny bird resembles some flycatchers more than other tanagers and
is the most widespread passerine (bird which perches) throughout T&T.
Colloquially known as sucrier or
“sugar bird,” Bananaquits indeed deserve the nickname. Most of their diet is
nectar, obtained from flowers in a similar manner to how hummingbirds access
the sweet liquid. But Bananaquits do not hover and must perch on the flower
itself. Lacking the extra-long bill of hummingbirds, a hungry Bananaquit often
must shove its entire head into the flower to access the nectar. For larger and
more inaccessible flowers they cheat by piercing the base of the flower and
therefore play no role in pollination via this method.
Bananaquit Photo courtesy Faraaz Abdool |
As male Black-faced Grassquits age, the extent of black on their face increases. Photo courtesy Faraaz Abdool |
A Blue-black Grassquit vocalizes to mark his territory early one morning. Photo courtesy Faraaz Abdool |
When the word “tanager” is
mentioned there are two species which immediately come to mind. Palm Tanagers
and Blue-Grey Tanagers are bold, vocal and well-known throughout their
extensive range. These are the usual suspects involved in the case of who broke
into the kitchen and poked holes in the ripe plantain. The olive-green Palm
Tanagers prefer to nest in palm trees, although they are adaptable birds and
will make use of any available real estate – whether in a potted plant or under
the eaves of a house.
Blue-grey Tanagers closely
associate with Palm Tanagers and have even been known to interbreed with them,
creating bluish looking Palm Tanagers or greenish looking Blue-grey Tanagers –
depending on the perspective of the observer. Many keen-eyed observers have
remarked that the Blue-grey Tanagers on Tobago seem to be more vivid than those
on Trinidad. This is no trick of the eye or light, as Tobago is home to a
different subspecies of Blue-grey Tanager that is bluer and brighter than their
Trinidadian counterparts. This subspecies berlepschi
is endemic to Tobago.
The slightly less common
White-lined Tanagers are sometimes perceived to be two separate species as
males and females look drastically different. Females are a warm cinnamon
overall while males are matte black with white under-wings. This white plumage
is generally only visible when the bird is in flight. Like many other tanagers,
White-lined Tanagers are quite social and are often found in male-female pairs.
During the breeding season, young birds accompany their parents on their
foraging route.
Palm Tanager Photo courtesy Faraaz Abdool |
Female White-lined Tanagers are rusty cinnamon and are often found with males of the species. Photo courtesy Faraaz Abdool |
As exciting as their name
sounds, Red-legged Honeycreepers are a blend of bold primary colours. Most easily
seen within the Main Ridge Forest Reserve, these birds are also sexually
dimorphic; males are blue overall with black markings and yellow under-wings
and females are olive-green above and tastefully streaked below. Female
honeycreepers lack the resplendent colours of the males as they are designed to
blend in with their surroundings. A predator is much more likely to single out
the neon-capped male than the more discreetly plumaged female. Both sexes sport
red legs though. Their long, decurved bills are perfect for accessing nectar
from flowers – although they also feed on fruit and small insects. The
subspecies tobagensis of Red-legged
Honeycreeper found on Tobago is yet another endemic for the island.
Oddly enough, several
seed-eating birds also belong to the family of tanagers. Among these are some
species that have unfortunately been targeted for the cagebird trade.
Seedeaters with the sweetest songs have been trapped out of existence on both
Trinidad and Tobago, even in the face of warnings voiced by several notable
resident and visiting ornithologists for at least forty years. Larger species
such as the Grey Seedeater or picoplat
were the first to disappear, after which trappers turned their attention to the
then ubiquitous Ruddy-breasted Seedeater. Today, none of the melodious songs of
these seedeaters can be reliably heard anywhere on either island.
This dearth of the natural
denizens of grasslands paved the way for the expansion of other species which
formerly shared the habitat with the more musical seedeaters. Two species of
grassquits can be found all over Tobago currently – the Blue-black Grassquit or
“Johnny jump-up” and the Black-faced
Grassquit. On Trinidad the situation is slightly different and much grimmer. The
lack of native seedeaters coupled with the introduction of a couple of
non-native species is essentially sealing the fate of our former residents.
Even with reintroduction, the minority population of native seedeaters is
unlikely to fare well in the face of habitat destruction, continued trapping
and competition for limited resources with the aggressive invasive species now
present.
The disastrous effect of
exponential human expansion is all too common. Collectively, we need to make
the extra effort to ensure that our co-inhabitants of this planet have the
basics: a place to live and nest, and food to eat. It is not much to ask, we
each need to take it as our personal responsibility and not assume that someone
else will help. Without tanagers, many species of trees will not be pollinated,
their seeds will not be spread and our world will be slowly suffocated.
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