GULL-BILLED TERNS

April 9, 2017 by Rolling Harbour

GULL-BILLED TERNS ON ABACO

The gull-billed tern Gelochelidon nilotica had a name upgrade from Sterna nilotica some years ago, and was awarded the honour of its own genus. Let’s be clear at the outset: there’s no such thing as a tern-billed gull, which slightly lessens the scope for species confusion.

Gull-billed Tern, Abaco (Alex Hughes) 04

Gull-billed Tern, Abaco (Alex Hughes) 05

There are 12 species of tern recorded for Abaco. Only one, the royal tern, is a permanent resident. There is one winter resident, the Forster’s tern and there a 6 summer resident terns of varying degrees of commonness. The other four are transient or vagrant, and probably not worth making a special trip to Abaco to find. The GBT is designated SB3, a summer breeding resident that is generally uncommon, though might be more common in particular areas.

TERN TABLE** Tern Species Abaco **I know! Too tempting…

The bird gets its name from it short, thick gull-like bill. It’s quite large in tern terms, with a wingspan that may reach 3 foot. They lose their smart black caps in winter.

Gull-billed Tern, Abaco (Alex Hughes) 03

There are 6 species of GBT worldwide, and it is found in every continent. While many terns plunge-dive for fish, the GBT mostly feeds on insects in flight, and will also go after birds eggs and chicks. Small mammals and amphibians are also on the menu.

Gull-billed Tern, Abaco (Alex Hughes) 06

All photos were taken by Alex Hughes, a contributor to “THE BIRDS OF ABACO”, when he spent some time on Abaco a while back in connection with the conservation of the Abaco Parrot and the preservation of the habitat integrity of their nesting area in the Abaco National Park

Gull-billed Tern, Abaco (Alex Hughes) 12

BLACK-FACED GRASSQUITS ON ABACO

March 1, 2017 by Rolling Harbour

Until 2016 the black-faced grassquit Tiaris bicolor was officially classified with other passerine emberizidae (e.g. antillean bullfinches & sundry New World sparrows). The classifications committee of the American Ornithological Union recently moved them to join tanager-type species, specifically the dome-nesting ones. Now they are considered to be closely related to Darwin’s finches; and they join the broader category that includes tanagers, grosbeaks, and buntings.

All photographs taken on Abaco, as credited below

THE BFG EVERYDAY TWITTERING SONG

THE BFG DISPLAY BUZZING SONG

Credits: Alex Hughes (1, 10); Tom Sheley (2, 3); Bruce Hallett (4, 9); Tom Reed (5, 11); Becky Marvil (6); Peter Mantle (7); Gerlinde Taurer (8); Keith Salvesen (12); Whatbird? (sound files)

AMERICAN KESTRELS ON ABACO

February 18, 2017 by Rolling Harbour

As many or most of the images show, utility wires (also posts) are a favourite perch for kestrels. They get an unimpeded view of the only thing that really matters in their lives – outside the breeding season, of course – PREY.

In my experience it’s quite rare to see AMKEs on the ground – unless they are in the act of ripping up some hapless rodent pinned to the earth. I was with photographer Tom Sheley when he captured this fine bird in the grass.

Tom also took this outstanding photo, on an overcast day, of a kestrel feeding its fledgeling a large insect.

An AMKE at Treasure Cay

A richly-coloured specimen

A kestrel in streamlined flight, with its feet tucked tightly under its body

Bird on the Wire

Credits: Bruce Hallett (1, 11); Charles Skinner (2); Peter Mantle (3, 9); Tom Sheley 4, 5, 6); Nina Henry (7); Keith Salvesen (10); Tom Reed (8)

TRICOLORED HERONS

December 19, 2016 by Rolling Harbour

TRICOLORED HERON: AN ELEGANT & PATIENT FISHER

The Tricolored Heron Egretta tricolor is one of 6 heron species found on Abaco, and is a permanent breeding resident. To which can be added 4 sorts of egret to complete a line up of expert fishers, all equally at home hunting in the water or from the shore, or surveying the scene from nearby vantage points like bushes and trees. A long neck, a long bill and long legs make this heron species ideally adapted for wading. Like other herons and egrets, it will stand stock-still waiting for the perfect fish to swim into range. However they are also active hunters, and will stalk prey or chase it by striding quickly through the water in pursuit. They eat fish, crustaceans, reptiles, and insects.

The heron and egret species of Abaco

Breeding plumage: smart blue bill and a fish to put in it

Credits: Phil Lanoue (1, 7); Dan Pancamo (2); Keith Salvesen (3); Woody Bracey (4); Bruce Hallett (5)

SANDERLINGS ON ABACO

November 24, 2016 by Rolling Harbour

SANDERLINGS ON ABACO

VIDEO 1 The scuttling and scooting around of sanderlings on a mission

VIDEO 2 Bathtime in a tide-pool and assorted comings & goings…

All photos and movies RH

THE OSPREY: “ABACO’S GOT TALONS”

November 4, 2016 by Rolling Harbour

“ABACO’S GOT TALONS”: THE OSPREY

The magnificent Osprey Pandion haliaetus is one of the world’s most successful raptors and can be found on every continent except Antarctica.

On Abaco the Osprey is a permanent breeding resident, and while certainly not an ‘every day bird’, the chances of seeing one are reasonable. They are fairly often seen flying over the bay at Delphi, or out on the Marls. A pair recently nested at Sandy Point close to Nancy’s restaurant.

Ospreys, Abaco (Jim Todd)

There are few more exhilarating sights in the world of birds than an osprey swooping from a great height into the sea, emerging with a large fish held characteristically ‘fore and aft’ in its talons, and flying into the distance with heavy wing-beats. This wonderful close-up by wildlife photographer PHIL LANOUE shows an osprey that has actually managed to grab dinner for two…

This bird looks as if it is poised to dive onto some hapless fish Osprey in flight (Lake Wylie, S Carolina) - Gareth Rasberry

10 PANDION POINTS TO PONDER

Ospreys are also known as sea hawks, fish hawks or fish eagles. They are almost exclusively fish-eating
A mature adult’s wingspan may reach 6 feet
They are the only members of their taxonomic family, genus and species
Ospreys & owls are the only raptors with reversible outer toes to grasp prey firmly
They can carry fish weighing more than 4 lbs
They dive into water feet first to grab its prey; their nostrils can close up to keep out water
Osprey-watch.org is a global site for mapping osprey nest locations / logging nesting observations
A New Jersey group has designed the optimum artificial nest platform, now an accepted standard
Ospreys usually mate for life
Osprey populations in many areas have been affected by pesticides and by egg trophy-hunters

PUTTING THE ‘PREY’ INTO ‘OSPREY’
Osprey, Florida (Danny Sauvageau)

A utility post makes a perfect perch for a bonefish snack Osprey, Abaco (Woody Bracey) copy

CHECK OUT THE TALON…

The impressive wingspan of an Abaco osprey Osprey, Abaco (Craig Nash) copy

An osprey far out on the Marls. I managed to get some distance shots of it despite having a fishing rod in my hand… Osprey - Abaco Marls 1 Osprey - Abaco Marls 2

Osprey, by John James Audubon

The Osprey is a prolific symbol in national, cultural and sporting themes, and has been depicted on Bahamas stamps. And quite right too.

Wm Shakespeare Coriolanus

I think he [Coriolanus] will be to Rome
As is the osprey to the fish, who takes it
By sovereignty of nature…

Credits: Jim Todd (1, 3), Tom Sheley (2), Phil Lanoue (4), Gareth Rasberry / Wiki (5), Danny Sauvageau (6, 8), Woody Bracey (7), Craig Nash (9), RH (Marls pics) – thanks for all image use permissions

RED-WINGED BLACKBIRDS ON ABACO

October 14, 2016 by Rolling Harbour

“STRIKE THE POSE”: RED-WINGED BLACKBIRDS ON ABACO

The red-winged blackbird (Agelaius phoeniceus) has previously hopped around these pages in the context of a (my!) simple way to RECORD BIRDS using a smart-phone, trim the result and convert it into an mp3 (or even a ring-tone – I have a great Abaco parrot one to startle friends, family and indeed complete strangers). Now we move on to a more important topic, namely courtship and so forth. And boy, don’t male RWBs fancy themselves when trying to impress the laydeez…We had taken a truck into backcountry between the pine forest and the Marls, with Tom and his impressive camo-camera with its 10 foot lens.

We found formerly cultivated fields – evidence of the defunct sugar cane industry – and then we came unexpectedly to a large expanse of open scrubland, with the track straggling through the middle.

And there, on carefully chosen vantage points, was an array of RWBs.

This bird was within range of my comparatively puny camera, and I watched as it arranged itself into various elegant poses in the late afternoon sun. All around were their ‘rusty door hinge’ calls, of which this is an example (in fact a female, recorded at Casaurina, hence the background sound of lapping waves).

These acres of open land were not far inland, and there was a slight breeze to ease the heat. This caused the occasional ruffling of feathers, and the need to spruce up…

The purpose of all this was of course to impress the opposite sex (behaviour not confined to bird species). There were plenty of females around, also similarly perching on vantage points for similar display-with-view-to-dating-maybe-more reasons.

WHITE-TAILED TROPICBIRD

September 27, 2016 by Rolling Harbour

WHITE-TAILED TROPICBIRD

A competition to decide the most elegant bird found on Abaco (of 350+ recorded species) is a simpler task than it sounds. Colourfulness doesn’t come into (sorry, painted bunting, Abaco parrot & co). Nor cuteness, rarity, popularity and so on. Some birds don’t make the starting line at all (but we love you, ungainly limpkins and raucous clumsy-flying Anis). Best to judge from a different viewpoint: is there one bird that in flight is invariably beautiful to watch, in a way that can make you catch your breath…?

White-tailed Tropicbird, Abaco (Alex Hughes)

The caribbean white-tailed tropicbird (Phaethon lepturus catesbyi) is one of six types of tropicbird found worldwide. It is named after pioneering naturalist MARK CATESBY, who predated John James Audubon. Click the link to find out more about him. Catesby’s depiction (below) of a ‘Phaeton’ must be one of the earliest.

Catesby’s Tropicbird Tropicbird - Mark Catesby jpg

In the Bahamas, tropicbirds are summer resident only and breed on the islands. Abaco is fortunate to have several breeding colonies, not all in remote or inaccessible places. Female tropicbirds lay a single egg directly onto the ground or on rocky ledges and in rocky holes. One might suppose that such limited egg production with a somewhat high-risk nesting policy, coupled with modern problems such as habitat destruction, might affect numbers. However, these fine birds seem to be doing well, and are IUCN-listed ‘Least Concern’.

This tropicbird on Abaco has found a safe place to nest in a rocky hole White-tailed Tropicbird on nest, Abaco (Alex Hughes)

Tropicbirds have a variety of local names in the Caribbean, for example ‘longtail’ and ‘bosun bird’ (after their screeching call). They plunge-dive for fish, but are inexpert swimmers. This is a factor I am prepared to overlook in the elegance contest. They were born to fly high, not to paddle about.

White-tailed Tropicbird, Abaco (Alex Hughes)

THE STORY OF TB THE TROPICBIRD

A couple of years ago, a tropicbird chick was rescued by a dive boat and given to Melissa Maura, well-known for her animal magic, to care for. She nurtured ‘TB’, giving him a soft bed and providing him with a swimming pool. To begin with, it looked as though he might not be able to fly at all, but as he became stronger he started to flap his wings.

White-tailed Tropicbird, Bahamas (Melissa Maura)

Then it was time to go to the beach, get acquainted with sand and sea, and practise flying. I have some pathetic photos of an exhausted TB lying flat out on the sand after his initial attempts to fly. But Melissa and TB persevered with the flying practice and in due course TB began to get the hang of it. Finally, the great day arrived. Melissa and a friend took TB down to the beach and launched him into the air. He took off, flying strongly away, never to return. A moment of triumph mixed with poignance.

White-tailed Tropicbird, Bahamas (Melissa Maura)

You are very welcome to propose a rival in the elegance stakes in the comment box!

Credits: Main photos Alex Hughes; TB images Melissa Maura

White-tailed Tropicbird, Abaco (Alex Hughes)

NEOTROPIC CORMORANTS

September 3, 2016 by Rolling Harbour

“EMERALD EYES”: NEOTROPIC CORMORANTS ON ABACO

Neotropic or Olivaceous Cormorants Phalacrocorax brasilianus. Smaller cousins of the familiar double-crested cormorant, and occupying a quite different range. In the northern Bahamas they are considered to be uncommon summer residents whereas the big guys are common year-round residents. However the neotropics’ range has spread in the last decade and they may become more noticeable on Abaco. Right now, Abaco is pretty much the northern boundary.

In many ways, cormorants are taken rather for granted – ubiquitous black guardians of the coastal margins. But seen close-to, they have their glamour. This is especially true of the slimmer neotropics, with precious jewels for eyes and intricate plumage patterns that a mere fly-past cannot reveal.

Male and female neotropic cormorants: a caption contest in the making…

Neotropic Cormorant, Abaco 2 (Bruce Hallett)

Besides being smaller and lighter than the double-cresteds, these cormorants have longer tails. They are mainly fish-eaters both at sea, and inshore where ponds are to be found. They make brief dives to find food; in groups they may combine to beat the water with their wings to drive fish into the shallows where they can be picked off more easily.

Neotropic Cormorant, Abaco 1 (Bruce Hallett)

The eagle-eyed may have noticed that in some photos the birds seem to be standing on some kind of white pipe, as indeed they are. That is because a good bet for finding one in the summer is on the golf course pond in Treasure Cay, a most productive location for spotting water birds of many species. The pipes are to do with the watering arrangements. I think.

Neotropic Cormorant, Treasure Cay, Abaco 2 (Tom Sheley)

As I have written elsewhere, “Call in at the Clubhouse for permission first. And if you hear a loud yell of ‘Fore’, it’s not someone counting birds. It’s time to duck…”

Raining? What, me worry?

Neotropic Cormorant, Treasure Cay, Abaco 1 (Tom Sheley)Neotropic Cormorant, Treasure Cay, Abaco 3 (Tom Sheley)

Credits: Photos – Bruce Hallett, Tom Sheley, Lycaon; Infographics – Allaboutbirds, Comingsbirds

ANTILLEAN NIGHTHAWKS

August 30, 2016 by Rolling Harbour

ANTILLEAN NIGHTHAWKS ON ABACO

“FAST FOOD ON THE WING”

The Antillean Nighthawk Chordeiles gundlachii has several local names such as ‘killakadick’ and ‘pi-di-mi-dix’, and variations on the theme – presumably onomatopoeic. The photos below illustrate these wonderful birds in flight and on the ground.

Paul Marvin / Xeno-Canto

The speed of flight and the jagging paths make the nighthawks extremely hard to photograph. It’s far easier when they are on the ground…

Credits: Woody Bracey (1, 4); Tom Sheley (2); Sandy Walker (3); Birds Caribbean (5), Susan Daughtrey (6); Paul Marvin at Xeno-Canto for the sound recording

THE BIRDS OF ABACO

The Definitive Guide to the Birds of Abaco, Bahamas

Category Archives: Caribbean Birds

GULL-BILLED TERNS