Showing posts with label awc. Show all posts
Showing posts with label awc. Show all posts

Thursday, February 5

AWC in Balanga

I was so happy to have had a work meeting scheduled on a Saturday  moved a day earlier!  It meant I could take part in the AWC (Asian Waterbird Census) at one of my favorite sites: the City of Balanga in Bataan.

Balanga has always been supportive of the AWC and of preserving the wetlands of Manila Bay. It is always a joy to take part in their activities.

This year, I wasn't assigned to my usual site at the Balanga City Wetland and Nature Park but to the private fishponds behind the cemetery at Barangay Puerto Rivas Lote.  When our team arrived at the site, it was cool and cloudy. The first few ponds had water in them and we could see several Little Grebes even in the distance.

The next couple of ponds were drained and held hundreds of egrets!  Little Egrets, Great Egrets and Intermediate Egrets!





And of course there were also large flocks of Balanga's unofficial mascot: the always elegant Black-winged Stilts.




I was surprised that there weren't too many waders to be counted.  Only a few Marsh Sandpipers and Plovers.  It was a challenge counting them so far away!




Because of the low count, we were done quite early and so we had time to admire the Whiskered Terns flying around us.





While having our thoughtfully packed breakfast, a flock of Black-winged Stilts flew gracefully into (and later out of) the pond right beside us.





When all the teams assembled at the City Hall, it turned out that the lower count (compared to previous years) was a trend for everyone.  The total count was at 12,599 waterbirds for all 4 sites.  


Tallying up the counts

It's hard to pinpoint what could have contributed to the lower count.  Was it the timing? The tides and fishpond water levels?  Was it the weather? Environmental changes? A combination of all of the above?  It certainly is difficult to tell.

Still, Balanga always holds impressive numbers and a few surprises for birders who persevere.  I am looking forward to many more birding trips to this city by the bay.

Monday, January 19

ABC: AWC, Bani, Cormorant!

For the WBCP, January means the Asian Waterbird Census (AWC) and it's time to apply wader and waterbird identification and simple math skills.

This year Adri and I joined the intrepid Bani team, off north to Pangasinan to do the count at the mangrove sanctuary of the Bangrin Marine Protected Area. It would be the third time in 4 years that we joined regulars Alex, Tere and Juan (plus driver Mang Boy of course!), this year joined by second-timer Jude and first-timer Homer.

Early on Saturday we started out, our ~ 230 km journey made faster by the taking the NLEX-SCTEX-TPLEX combination expressways.  We arrived in time for a super late lunch care of the LGU.  Everyone was busy preparing for the pakwan (watermelon) festival which was to be held in a couple of weeks, but an LGU rep, Imman, welcomed us, checked us in in our accomodations (right across the munisipyo!) and cleared up our schedule for the AWC the next day.  Since it was still early enough, we decided to spend the afternoon with a quick ocular of the count site, and so off we went to the port where we had our boatman waiting to take us to the sanctuary in a small flat boat.


The mangroves at Bangrin: home to thousands of egrets, ducks and other waterbirds.

The boats do not have an outrigger!

In the golden afternoon light, the scenery around us was magical. From the guardhouse/ watch tower we could see the fish pens where terns, egrets and herons were perched.  Alex even spotted a Rufous Night-heron, a species which is greatly outnumbered by the more common Black-crowned Night-heron.



Alex surveying the count site at dusk.


A Rufous Night-heron in the golden light.
As the sun set, scores of egrets flew into the mangroves from the mainland.  It was a great preview to the challenge of counting them at sunrise the next day, going in the opposite direction!


Egrets coming in to roost at sunset.

Joining the egrets heading to roost at the mangroves was a flock of 120 Crested Mynas! It was an unexpected sight seeing them flying low over the water and into the mangroves.



We headed back just as the darkness set in, fishermen now readying for their night catch, oil lanterns floating on the calm waters of the river.  A family of Little Grebes dove under water as our boat passed by, and popped out a few meters away.

A peaceful co-existence: fishermen and egrets.

A hearty dinner was prepared for us, and we all enjoyed the fresh bangus (milkfish) and chicken pork adobo.  We all went to bed early, only to be wakened (but not Adri and myself who slept like logs) at 3 am-ish by an earthquake which rocked western Luzon.  We did get up at 5 am for a quick breakfast and off we were, arriving at the still dark dock.  Stars sprinkled the velvet sky above us, and the horizon was clear, from the Southern cross to the Big dipper.

As light began to creep in and single egrets began to fly above us, we got on the boat to meet the egrets flying out.   On the river, left and right, egrets, terns and wild ducks flew and we were quickly counting them out as Tere and I took down notes.

Upon reaching the guardhouse, Alex, Tere, Juan and Jude got down, ready to count from the tower and boardwalk.  Homer, Adri and I took the boat down to the other side of the mangroves where the mudflats were more exposed, to count waders and the ducks.


Smaller tributaries through the mangroves.

As we moved through the mangroves, rails - mostly barred and a single buff-banded rail, sandpipers, common kingfishers,striated herons and little egrets were busy foraging and hunting at the edges.  A small flock of Pacific Golden Plovers stood quietly at the water's edge. As we rounded the mangroves opposite the guardhouse, our boat landed softly on the mud beneath the shallow waters.  The expanse of mudflats was busy with Redshanks, Common Greenshanks and Marsh sandpipers.



The extensive mudflats at low tide.


A few Whimbrels and Grey Plovers were also foraging some distance from the boat.  They were soon joined by Kentish Plovers and Sand Plovers as the tides ebbed.


Grey Plovers and Redshanks
Beside our boat, an eel was getting stranded on the mud, providing us with measure of how fast the waters were receding.


Peter Gabriel would sing: Stranded [eels] have no place to hide.

Near us, a common sandpiper was quite successful in finding its prey by poking its beak in the soft mud.




A common sandpiper busy catching it breakfast.

More difficult to count were the hundreds and hundreds of ducks at the edge of the mangroves.  Most were floating on the water, either busy preening or asleep, but some were standing on the mud, half hidden in the tangle of mangrove roots.  The unstable boat made counting a challenge, especially through the scope.  We finally moved the scope so that 2 legs of the tripod were on the slightly more stable mud (sinking almost a foot deep) with the third leg balanced on the boat.  Using this technique we spotted a few Northern Pintail and Northern Shovellers mixed in with over a thousand Philippine Duck.


Can you spot the ducks?

As we were counting, we received an excited call from Alex and co.  They had spotted a Great Cormorant!  This was a very rare migrant, and a would be lifer for the three of us on the boat!  We could see Alex, Tere and Juan in the distance, on top of the watchtower, looking out in the direction of the fishpens.  All we could do is hope that the cormorant stayed on until we could finish the count from our side.

We continued our count, taking note of a lone Black-winged stilt and several Grey herons. Unfortunately, we had recieved news that the cormorant had flown into the mangrove area and was out of sight.


Always graceful with their long legged legs: Grey Herons

As we were finishing up, 8 Bar-tailed Godwit flew in, a great inclusion to the count.  A quick check showed that we had covered our area extensively, and it was time to head back.

As we were entering the main tributary, we again received an excited call from Alex.  The cormorant was perched on a large driftwood in the middle of the river!  We could attempt to approach it on the boat!  A quick scan quickly revealed the distinctive bird in the distance, just as Alex had described.  Our boatman quickly spotted it also.  He recognized it immediately, saying that it was "bagong dayo" (a newcomer) and that just that Monday, there were three of them!  Unfortunately, the two disappeared during the week leaving the one. He confidently said that we could approach it quite closely on the boat and that it would not fly off.


Do you see the cormorant on the driftwood?


And so we did just that.

Closer.  Peering through our bins.


How about now?
Even closer... Homer on his bins, myself peering through my camera's view finder and Adri on the scope!


The unmistakable Great Cormorant.

And even closer, so we could see all the details, even some of the feathers stuck on its beak from its preening!  The bright yellow face, white cheeks and even its webbed feet were clear even on the slightly bobbing boat (out boatman had cut the engine by now and we were drifting)!  Super cool lifer for my 2015 AWC!


Lifer!  Great Cormorant: first record for Bangrin.

Ooops,  we soon drifted too close, it took off towards the fishpens.  We returned to the watch tower triumphant!  We rejoined with the rest of the group and went over our numbers. Having concluded the count, we now took our time enjoying views of the cormorant through the scope.  It seems the driftwood was its favorite perch as it returned there quite regularly.

Nearby, a pair of whiskered terns were making a ruckus, with one calling loudly from the ground while the other flew around it.  was it an immature begging for food?


This Whiskered Tern was noisily crying out to another.

Another highlight of Bani are the Ospreys, and although there were fewer of them this year, we still counted 11.

The sun was quite high in the sky already and we decided to head back.  Behind us, the Philippine Ducks suddenly took to the air, an impressive flurry of birds flying around the mangroves.


A safe haven for thousands of wild ducks.
We took a quick look at the fishponds at the dock area, but since their water levels were quite high, we only spotted a few Wood sandpipers, Little Ringed Plovers, Stints and Black-winged Stilts.



A trio of Little Ringed Plovers in varying plumage.


Black-winged Stilts in leg-deep waters.

Over lunch we consolidated our lists and came up with an impressive total of 16,604 birds composed of 29 waterbird species! Highest counts were 9,400 egrets, 3,879 Philippine ducks, 1,229 Whiskered Terns, 658 Redshanks and  515 Greenshanks. Another super count for Bangrin!

After lunch, we went our separate ways, with Juan, Jude and Homer heading back to Manila.  Alex, Tere, Mang Boy, Adri and I decided to check out the nearby Masidem Small Reservoir irrigation Project (SRIP) before driving back home.  It was white hot up at the dam, and the heat was almost unbearable under the sun.  Our side trip was not in vain though as we spotted several ducks.  Most of the ducks were Northern Shovellers (~73)  and Philippine Ducks (~45).  But there were also several Eurasian Wigeons, 22 of them, the most I had ever seen together! Adri also spotted a lone Common Pochard, its distinctive head shape and mostly white body distinguishing it from the wigeons.


Alex, Adri and Tere counting ducks in the heat of the sun.

All in all, it was a great trip.  Bani has continued to surprise me with lifers (Silky Starlings in 2012, Black-tailed Godwits and Gadwall in 2013 and this year a Great Cormorant!).  I hope I can be back again next year!





Wednesday, February 6

osprey on the hunt

i loved watching the osprey hunt at bani! osprey are quite cosmopolitan, found on all continents except in antartica. i actually saw my first osprey in the louisiana bayou but since then i have had several encounters with this large raptor locally. the largest congregation of osprey i have seen is in bani in pangasinan! last year we recorded 22 osprey all within a kilometer of each other, perched on the fish pen nets, unmindful of each other.  this year we saw "only" 19! 

at bani this awc, we took a short break from counting waterbirds as noontime approached, and watched 3 osprey hunting for bangus, quite successfully, at the fishponds. it would be wonderful to set up a hide by the fishponds and watch these birds of prey in action.


first, hovering over prey spotted in the fishpond

then folding its wings coming into a stoop

talons forward to grab the fish

dive and splash!!! (maybe sometimes they do it just to cool off!)

a show of power as they pull out from the water

and flying off with the fresh catch


far, far away to enjoy the bangus in private

there's nothing like watching the predator in action in real time, so here's adri's short video (watch in hd for optimum viewing):


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Monday, February 4

25,933


that is the astounding awc count for balanga for january of 2013!


city administrator rudy de mesa proudly adds up the awc numbers at the city hall
after going for the parrotfinch in samal and birding the letran campus in abucay, next on the agenda (and on the map-literally! check out the map for bataan) was balanga for the asian waterbird census!

it is such a joy to do the awc for balanga because the mayor's office is soooo supportive and the balanguenos sooo welcoming. ever since their participation in the very first philippine birdfair, their contribution to birding and to wetlands conservation has snowballed, making balanga one of the most bird- (and birder-) friendly places i've been to.


always a warm welcome from balanga
for the nth year in a row, i was assigned to do the count in tortugas at the balanga city wetland and nature park.  we arrived there as dawn was breaking. 


morning light reveals low tide... and LOTS of waders
and what did the morning light reveal??? the lowest low tide ever i had experience there for an awc!!!


a collared kingfisher scans the mudflats at low tide
i peered fearfully into the scope. and there they were: like the earth was moving, like mice scurrying around, like... waders galore!!! oh why o why did i not volunteer to count egrets, terns or gulls?


terns and egrets: i did not have to count
but setting aside my initial reaction, i took a deep breath and started counting. plovers, stints, greenshanks, redshanks, sandpipers. blast from the past.


greenshanks and redshanks were the least of my problems when it came to id

the morning cool was soon replaced by the white heat of being by the ocean at midmorning, and thankfully, as the sun rose in the blue sky, we were done.

as out team mates were consolidating our counts, adri took a quick scan of the gulls, with a particular bird in mind. and he was not disappointed.


which of these gulls is not a gull?

in the middle of a flock of black headed gulls preening on a mudflat several meters from the beach were 6 great crested terns!!!


a great crested tern!


my 5th lifer for 2013! thank you adri!

i heart balanga.

Thursday, January 24

bonus birds at bani


since becoming a birder and joining the wbcp, i have reserved 2 or 3 weekends of january for the asian waterbird census. this year, with the much-anticipated romblon awc scrapped, my first awc was in bani, pangasinan.  it was the second time in 2 years that i was joining the bani trip, along with the original group composed of juan m, alex, tere, adri and myself. a co-worker of juan, max, joined us.  sadly, rene c, who led the group last year, could not make it this time. 

we arrived in the afternoon on saturday, settled in at the lovely old woods by the sea resort, and did some casual birding around the area.  it was lovely weather to go afternoon birding, with the cool temperatures, slight ocean breeze and clear skies.  we were happy to see several birds along the trail leading away from the resort and road: aside from philippine- and yellow-vented bulbuls, orioles, sunbirds and other more common birds, we also glimpsed a pair of black-naped monarchs, white-browed shamas, philippine tailorbirds, a scale-feathered malkoha and some doves.


the charming old woods by the sea resort: very idyllic place to while away time
the resort was a good half an hour or more from the awc site so we were up by 4am the next day, refreshed from a restful sleep, and off to the mangrove sanctuary.  when we got to the jump off point at baranggay aporao, the orange light of dusk chasing away the purple darkness of evening, and we could already see egrets flying over on their way to their feeding grounds.


morning breaks: an orange and pink sky
when we arrived at the viewing station and boardwalk of the bangrin mangrove sanctuary, it was already light and we walked up to the roof deck.  it was good to do a census with a group that had been doing it together for many years and we automatically assumed our roles for counting different waterbirds. the tides were still receding and we could see waders feeding at the mudflats around the mangroves.  on the opposite side, towards the fishpens, alex would get excited over the several osprey hunting bangus so early in the morning.


arriving at the viewing station at first light

the fishpens were bereft of terns... but the osprey were still there
hunting bangus in the fishpens - these osprey have got it good!
our vantage point made counting quick and painless (except for alex who had to count the egrets which were flying off in large numbers!), so we took a break and had our breakfast (sinangag + scrambled egg + longganisa + daing + red banana).  it was a very short break because immediately after finishing off the food, we took a boat to go around the mangroves.  the tide was too low for us to go inside, but we were able to go around quite easily, anchoring on the side opposite the viewing station to continue our count.

the ease of our first station was now offset by the difficult task of counting and id-ing waders from a floating bangka, through bins and scope! several waders were out feeding, used to boats and fishermen, they ignored our presence a few meters away from them.  aside from egrets and herons, there were redshanks, greenshanks, grey and pacific plovers,  marsh and wood sandpipers and a few whimbrel.


counting from a rocking boat is quite a challenge



nearer to the mangroves, quite a distance from us was a large flock of philippine ducks!  they were on the water, coming out of the mangroves where the water was presumably disappearing with the ebbing of the tides.  we counted more than four hundred of them, with still several (hundred?) more trickling out from the mangroves.


philippine duck bobbing on the ocean's surface
and then adri quickly pointed out a small flock of 19 waders a few meters in front of our boat. they were probing the mud for food with their long bills.  black-tailed godwits!!!  a lifer for adri and myself!  this was a good record for bangrin, the black-tailed godwits are a near-threatened species owing to the decline in their population the past years.



lifer: black-tailed godwits!

there was a general hustle to get a good view, since the length of the bangka was perpendicular to where the birds were.  good thing that i was up front and center so i got excellent views.  as a fisherman passed them on another bangka, they took to the air, giving us good looks at their tails and rumps and confirming adri's id.



black-tailed godwits take to the air...

... and land gracefully on the water (showing their black tails!)

the sun was already mid-apex and we decided to take the boat back to the dock at aporao to check out the fishponds.




more waders and egrets on the way back


the nearby fishponds were full of water, though we did walk quite a distance (through barking dogs and escaped goats) to get to a pond which was full of white egrets.  every now and then we would spot a random wader, a common sandpiper, wood sandpiper, redshank or greenshank. not too many though.  a couple of black-winged stilts would fly in the distance only to disappear behind the grassy borders separating the ponds.


  
and even MORE egrets!

of high entertainment value were 3 osprey, all hunting bangus at the pond, and quite successfully.  it is always exciting to watch a bird of prey at work, and the great splashes the osprey maded as they dove for the fish was as action-packed as you can get at the awc!  they had quite a good success rate i must say, carrying off maybe one fish for every three attempts. 


another osprey with another bangus!
it was just 11am when we decided to head back, when william (the denr rep) asked if we wanted to check out the dam at another site. he had heard reports of wild duck being spotted there.  

why not?  

as we were leaving aporao, we would stop from time to time at dry fishponds.  finally we spotted more little-ringed plovers and kentish plovers and long-toed stints!  we had all commented previously on how we hardly saw any. we even added buff-banded rail to our census.


an adult little-ringed plover

and an immature little ringed-plover

a kentish plover

the ever-elegant black winged stilt
a  buff-banded rail
the dam, a small reservoir irrigation project (srip) of the nia (national irrigation authority) was not a long way off, although the roads (dirt roads) were pretty bad.  we passed through almost bone dry landscape, and i wondered were the dam could be.

when we arrived at the dam at high noon and we quickly got our of our vehicles and walked up for a view of the reservoir.  ducks!!! quite a distance away across the water, still ducks! once again, they were quickly drifting into a small cove, away from sight so we walked across the dam to get a better vantage point.

the guy stationed at the small office mentioned that the ducks would usually arrive at the dam in the morning and leave in the early evening.  their numbers were usually highest in the late afternoon.

even from the distance it was obvious that while most of the ducks were the endemic philippine duck, there were migratory species as well.  the bright white breasts of the pintails stood out in the flock. on the scope, adri was able to single out a few eurasian widgeons and a lone female shoveller. nearer to us, separate from the larger group, were a couple of tufted duck. while counting, i was able to pick out a couple of garganey, their smaller size evident even in the distance.


ducks far, far, faaaaaar away
most of the ducks were sleeping, but one duck had a nicely patterned back, the scalloped design more distinct than the ducks around it.  while i was looking at it, it lifted its hidden head and... an orange bill!!!  i quickly called adri before it floated out of view and disappeared into the flock, or worse, before it decided to go back to sleep and hide its head again.

we had a hard time keeping it on the scope for everyone to get good views and check out diagnostic marks. it was too far to take a photo, even through the scope so we had to be sure.

it turned out to be my second lifer for that sunday: a female gadwall!

the gadwall, as well as the discovery of several hundred wild ducks sheltering at the three-year old dam was certainly worth the detour we had taken.

two lifers for my first 2013 awc. not bad at all.

thanks to the mayor of bani, mayor cel navarro, for hosting us once again.