Bugs life plus

Just finished my survey time off Senegal so here's a selection of some of the fauna that I saw during the voyage.

Grasshopper with a smile!

locust

African Monarch

Pomarine skua

Sudan Golden sparrow

Sei whale

Fraser's dolphins

short-finned pilot whales

A trio of boobies.

A good week for boobies- although only observed in low numbers, this juvenile red footed booby makes it three species in 5 days. Having done the obligatory 'eat the flying fish' routine it decided to settle on a mast allowing for some portrait shots to be taken. I have also had a brief visit from a bottlenose dolphin and a distant frigate bird sp. Some autumnal bird migration has started with a few more pomarine skuas, a single great shearwater and several distant wader spp. all flying south. Hopefully something unusual will pass within range of my lens before too long! 

North sea birding.

After a brilliant spell of Scottish autumnal birding I find myself back at sea - a big reality check as the North sea can be very daunting at this time of the year- and I'm looking at being here until late December! Anyway, gotta earn the dosh to pay for next years trips to Shetland and the Hebrides!

Still some light vis. mig. ongoing with wrens, robins, goldcrest, starlings, black redstarts, a woodcock, brambling, redwings and fieldfares all recorded on the deck or flying south past the vessel. Bird of the trip so far was a very tidy grey phalarope sitting on the sea about 5 NM east of Peterhead a few days ago. Today saw some good seabird passage with several thousand fulmars, hundreds of kittiwakes, scores of gannets, two pomarine skuas and 40+ little auks all heading south past the ship. Hopefully there is still time for a 'big' sibe to grace the deck of my vessel- or maybe even a firecrest! Here's hoping. I was quite content seeing several 'blue' fulmars today though.

Gairloch pelagic- the Minch.

A boat trip in the Minch is always fun and with recent reports of Orcas and Sabines' gulls to whet the appetite I jumped at the chance of a place on the Hebridean whale cruise 'Orca 1'- a large fast RIB designed to cover big distances at speed. The weather and sea conditions were ideal- flat calm with good visibility although the light was very flat due to the hazy conditions. Within 15 minutes of setting sail we were surrounded by a pod of circa 500 common dolphins that obligingly played around the vessel providing outstanding views. A short while later we watched a minke whale- the first of 5 encountered during our trip. Harbour porpoises seemed to be every where. Birds were not as abundant as I had hoped but we recorded sooty shearwaters, manx shearwaters, an arctic skua, a possible long-tailed skua and 3 pomarine skuas. Great skuas were abundant as were over 50 storm petrels. Unfortunately no orcas or Sabs. were seen but we also saw a pair of bonus white-tailed eagles on the return leg and a flock of 28 black-throated divers. 

sooty shearwater

sooty shearwater

common dolphins

common dolphin

common dolphins

minke whale

white-tailed eagle

Olive-Ridley turtle

Last day of my survey work today, so lots of 'computer work' to tidy up and finish- spreadsheets, day report, weekly report, monthly report, final report…….after sorting that lot out I then had time to do what I'm supposed to do and actually survey marine fauna!

Anyway, we had a nice close pass from an Olive-Ridley turtle today. Also a mini-surge in bird migration with pomarine, arctic and long-tailed skuas past the vessel- also a few more Sabines gulls and my first Arctic terns of the voyage. In very calm conditions I also saw a few rafts of grey phalaropes sitting on the sea, a number of black terns and a couple of Leach's petrels.

I should get off the vessel tomorrow and commence my 3 day journey home- looking forward to getting back to the UK for some spring migration and much anticipated visits to the Outer Hebrides and Cornwall! Hopefully catch-up with some cracking migrants at PG and the Lizard!!

Olive-Ridley turtle

close-up showing the scute layout

Black tern

Sabine's gull

El Dorado

The dorado (Coryphaena hippurus)), also known as the dolphin- fish or mahi- mahi,  is one of my all time favourite marine fish species. They are often seen associating with large tuna, billfish and dolphins- particularly during feeding frenzies when they often leap high out of the sea. They also frequent floating objects where they lurk in the shade- ready to pounce on unwary prey. Spectacularly coloured, fast and agile, these fish can often be seen pursuing flying fish that rise up from the sea surface in an attempt to avoid being eaten! Dorado often accompany ships in tropical waters- frequently riding the pressure wave off the bow. The chromataphores- cells in their skin, allow them to change colour like a chameleon when they become excited or agitated. Yesterday I saw two of these awesome ambush/pursuit predators slowly swim alongside the vessel, burst into an incredible underwater sprint, then explode through the sea surface as they attempted to catch the flying fish that were being constantly flushed ahead of the ship- difficult to capture the explosive nature of the hunt on film (especially with no polarising filter) but a few shots were achieved. My next big challenge is to try and photograph the flying fish! 

It has gone very quiet on the seabird front with just a few transient pomarine and long-tailed skuas. 

long-tailed skua

long-tailed skua

Skua passage

Skua passage has been building slowly over the last week with 20-30 birds seen most days- usually single birds but occasional flocks of 3-4. Yesterday morning the pace increased and I counted 250+ birds passing the ship  in the first two hours of daylight. Most of the individuals concerned appeared to be pomarine skuas, although a few arctic skuas were also noted. The highlight however was the presence of several long-tailed skuas. Interestingly I saw a flock of 30 or so skuas that appeared to be migrating low over the water in the company of Cory's shearwaters- all the birds working their way WNW using lazy, languid wingbeats in the almost still air. At one stage the birds rested momentarily on the sea before resuming their passage. It was also interesting to see 3 poms. scrapping over an eel that had been caught by one of the birds. The bright tropical sunlight is very flat and I am struggling to find a suitable camera setting but have managed a few shots.

a great spectacle!

long-tailed skua

Arctic skua

long-tailed skua

Poms at play!

long-tailed skuas

pomarine skua

Corys' on the move?

We have moved North to within 20 nautical miles of the coast of Ghana and inside the 200 metre depth contour. The change in the numbers of seabirds is very noticeable with a steady, albeit light passage of pomarine and arctic skuas, a handful of grey phalaropes, single 'comic' tern and hundreds of Corys' shearwaters. The shearwaters are becoming increasingly restless, forming into rafts of several hundred birds- this possibly being the precursor to their north-western migration back to higher latitudes- I have seen similar behaviour with regard to great shearwaters before they head south from Greenland for their autumnal migration. Both Cory's (C.borealis) and Scopoli's (C. diomedea) are found here and as Paul Stancliff of the BTO pointed out the bird immediately below shows the white primary 'fingers' extending into the black 'hand' - a good feature for Scopoli's. 

part of a 'raft' of several hundred Cory's/Scopoli's shearwaters

pom skua

Shear delight

After a few days of fog and light, variable winds, the forecast of a reasonable blow with a significant westerly element raised my pulse rate and guaranteed that I was on watch early the following morning. I was not disappointed, as two great shearwaters flew 100 metres or so off the port bow as I gathered my waterproofs, hat, notebook and binoculars from the bridge! From then on and over the last three days I have enjoyed three figure counts of great shearwaters, intermingled with scores of Cory's! Some birders would say that when you have seen one large shear you have seen them all, but I disagree, find them totally captivating and have no problem watching them shear and glide over the swell and waves for hours on end. Surprisingly, and contrary to the large numbers of sooty shearwaters reported from Irish sea-watching sites, I have only seen one in the last 3 days- maybe they hug the Irish coast more as they drift SE? I also had the bonus of seeing flocks of Sabines' gulls- a group of 3 and a group of five. Unfortunately being on a 92 metre vessel, with a GRT of over 9000 tonnes means that many birds are rather ship-shy, occasionally however, a large shear made a relatively close pass, allowing me to try for a couple of shots. Good numbers of Arctic and 'comic' terns have also been seen flying south and an additional grey phalarope and a turnstone have been the only other obvious passage birds. I suppose we should see some significant skua passage before too long, but with the exception of a solo, spoon-laden pom and a few locally foraging bonxies they have yet to make an appearance. Happy days!

great shearwater- close pass at last!

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Cory's - unusually close in!

brilliant birds!