Friday, June 13, 2014

My first wish list

Seeing the Least Bittern in Gamboa earlier this week after all these years birding in Panama (19 years so far) with my wife was a great experience.  As I mentioned in the previous post, this was not a lifer.  I saw my first Least Bittern maaany years ago in coastal Lima (Peru) and since then, I had seen many spectacular heron species, including Least and other bitterns... so, what's the big deal?
Pinnated Bittern in Guaviare (Colombia), where I also saw a Least Bittern
This bird was so important to me because it is part of my very first wish list of birds to see in Panama!  You make a wish list with those species (of birds, in this case) that you want to see in the near or far future in a specific geographical area (state, country, world).  And I did my first formal wish list 18 years ago, in 1996.  In fact, I still have that list with me... handwritten in spanish (back then I did not have my physician handwriting) and with a yellowish hue due to the years, I found it deep buried under some old notes and bird lists.
The second bird in this list is Least Bittern (Mirasol Menudo)
Reading it brought back fond memories.  I can swear I remember each of those observations.  If you read it carefully, you can infer that I was just beginning to see birds.  My wish list have some birds not considered rare at all (Mourning Dove for example) and some broad groups (like any macaw or any quail-dove for example) as well.  Each of those records is an anecdote... I have some to share with you.  When I wrote that list, I considered that the most difficult species to see in Panama would be the Grasshopper Sparrow.  In fact, I thought it would be impossible, since the endemic subspecies beatriceae had probably been eradicated from our territory by habitat destruction in the Coclesian savannah of central Panama.
Grasshopper Sparrow.  January 2012.
Then, two years ago, in a random field close to our house in Penonome, while birding alone I found a Grasshopper Sparrow that allowed great photos!  The news of the re-discovery of the once-thought-exctinct bird in Panama spread like wildfire and the bird was relocated by at least two different birding groups in the next week.  Want to hear another story?  Look at my list... there are still two spaces left blank.  One is Bobolink, the other is Little Cuckoo.  Back in April 1998, while participating in the Young Ornithologist Program by the Academy of Natural Sciences of Philadelphia and the Panama Audubon Society, I had a chance to see this bird.  The field trips for the program included a visit to Costa del Este, then a marshy area surrounded by a mangrove forest in the outskirts of Panama City.  At one point, one of the instructors (Dr. Robert Ridgely!) pointed a rare Spot-breasted Woodpecker to the group while, in the opposite direction, someone else (I don't remember who, sorry) pointed a Little Cuckoo.  In matter of seconds I weighted both options.  Both were in my wish list... the cuckoo was considered uncommon in the right habitat (including some areas in the Canal Area close to the city); in the other hand, the woodpecker was considered rare even in its usual range and only few reports for those mangroves (and none since then).
My life Little Cuckoo in Guaviare (Colombia)
Well, you know what was my choice.  After seeing the Spot-breasted Woodpecker, I ran in the opposite direction to see if I can catch the cuckoo... the bird was gone.  Since then, I've seen the woodpecker on six occasions in Panama, and I have not even had a chance to see the cuckoo!
I have done many other lists since then, but the first will always be special ... and from what I see, I have two targets for my upcoming birding trips!

Tuesday, June 10, 2014

A tiny heron

For some reason, both my wife and I had a free afternoon today.  After reading some interesting reports from Gamboa (in central Panama), we decided to visit the quiet town at the banks of the mighty Chagres river, trying to relocate the Least Bittern that my friends Venicio "Beny" Wilson and Osvaldo Quintero saw (and photographed) earlier in the day.  We left Panama City at 3:00 pm, with clear skies; however, Gamboa is 40 minutes away crossing the Continental Divide well into the Caribbean slope, so the weather is unpredictable... and the picture was not good.
A heavy rain hit us part of the way.  Thanks God the weather was cloudy in town (dark, with no rain at all), so we stopped at the Ammo Dump ponds, where the bird has been seen for some time.  The Least Bittern is a shy resident in this part of the country.  When I asked Gloriela if she wanted to go after it, the first thing she asked me was "it is rare? (Gloriela is kind of a twitcher)",  my response was YES.  It is seldom seen and reported... and is a bird that I had never personally seen in Panama (yes, I'm kind of a lister).  The usual suspects (Wattled Jacanas) swarmed everywhere.  We just sit and waited.
Wattle Jacana.  File photo
While waiting, other residents of these ponds showed up, like Black-bellied Whistling-Ducks, an Anhinga and a Ringed Kingfisher.  After 10 minutes, a tiny bird with conspicuous buff wing patches approached from the other side of the pond, landing just out of sight... a Least Bittern!  we decided to sneak into another lookout, with a better angle of view.  After a while, the bird came out of hiding, probably after feeding the chicks according to Beny, and perched atop some low bushes.  It turned out to be a beautiful male.
Least Bittern.  Actual photo
For some seconds I forgot I had my camera handy, we were amazed watching the tiny creature with our binoculars.  Eventually, I grabbed my camera and took the above shot... just for record, nothing to do with the excellent photos of this very same individual previously taken.  It was a life bird for Gloriela and a nice addition to my Panama list.  The bird stayed only for one minute or so... after that, it flew to some reeds where it disappeared.  We waited 30 minutes and nothing... we only add a Purple Gallinule to our list.
Purple Gallinule.  File photo
Then, it started to rain... a huge thunder storm was approaching!  We decided it was enough and returned to the city under some spectacular lightnings.  What a great way to end a twitch!

Wednesday, June 4, 2014

Portraits in the savanna

In spite of not finding the Maguari Stork reported for Juan Hombron (Cocle province, central Panama) after several visits, the good thing is that I had the opportunity to take some close-ups of common inhabitants of these typical arid savannas.  Advantages like clear light and unobstructed views are the ingredients to great portraits... even for an amateur photographer like me.
Variable Seedeater
For example, the male Variable Seedeater pictured above was quite curious and came to inspect me for a while.  Several males were engaged in courtship displays and singing the heart out.  They were very common in those fields.  Another common species was the Straight-billed Woodcreeper.
Straight-billed Woodcreeper
Not only common, but beautiful as well too.  For a woodcreeper, it is quite distinctive, with that straight, pink bill and bold head marks.  It is restricted to mangroves and adjacent shrubs and secondary growths.  In the other hand, the Groove-billed Ani is simply an all-black bird.  In fact, it is easier to ID it by voice than by sight (due to confusion issues with the Smooth-billed Ani present in smaller number in this same area).
Groove-billed Ani
However, with looks like this you can actually see the grooves in the bill of this individual!  It easy to ID the birds if you actually see the field mark by which they were named; for example, can you name the next species?
Lesser Yellow-headed Vulture
Jejejeje, just kidding.  However, they would be more difficult to identify if flying away.  The Lesser Yellow-headed Vultures are commoner than Turkey Vultures in this habitat, specially this time of the year.   Also common, and a nice representative of this savanna, is the Savanna Hawk.
Savanna Hawk
This long-legged hawk is huge and colorful, making it recognizable from long distances.  Due to the lack of tall trees in the savanna, this raptor (like many other as well) take advantage of any high site (like this telephone pole) to observe its domains.  Well, that is all for now... but certainly is not my last time in Juan Hombron looking for my Maguari!

Monday, June 2, 2014

Swifts tale

Last month, a series of intriguing and exciting news came from the western highlands of Panama.  The discovery of several Cypseloides swifts nesting behind waterfalls was shocking.  Why?  For background, Cypseloides is a genus of uniformly dark and little known swifts, specially in the neotropics.  In Panama, only two species were known... one is extremely rare.  The other one, known only by two specimens.  The identification depends in subtle field marks, like size, facial pattern, nostril shape (yes, nostrils) and so on...  very difficult in fact without prolonged views or specimens.  That's why, the opportunity to study these birds sitting on a nest is priceless.
The Bricks
The nest were discovered close to the town of Boquete (where "The Bricks", a basaltic formation, is a well-known touristic attraction).  Since the publication of extremely good photos (for a swift) in Xenornis, there has been an extensive discussion about the identity of these species... well, about one of them (the other one is simply unmistakeable if seen that well).  Accompanied by a group of fine birders, and guided by one of the discoverers, Craig Bennett, I went with my family to the charming town of Boquete in a "swift" weekend trip.  After arriving saturday's afternoon, a heavy rain stopped us from make a first try at the place (exact location reserved to avoid disturbance to the nesting swifts).  We decided to visit the nests the following day (june 1st).  My wife and Gabrielle spent the day around the central plaza, while I went to look for the bird with the rest of the group.
George Angehr, Darien Montañez, Rosabel Miró, Rosa Montañez and Craig Bennett
After a hard trek, climbing through muddy paths and trying not to fall, Craig showed us the first nesting bird.  After simple instructions, I was able to see two white dots almost glowing in the dark... WOW! a Spot-fronted Swift... the first for Panama and a little known species.  We used a scope to watch and photograph the birds from a safe distance.
Spot-fronted Swift!
This is an awful photo, I know... my digiscoping abilities are exactly none, and we were too far for my 400 mm lens.  I took this photo with my cell phone, the quality is... well, you can see it.  However, I don't care... this is an extremely rare swift... and from now, my favorite swift in the world!  Those facial marks are unique, making this species relatively easy to identify if seen well.  We spent only a couple of minutes in the site and moved on to the next pair, also behind a waterfall.
White-chinned Swift
This time, the subject of our scrutiny was a nesting White-chinned Swift... also a rare and little known species.   We took the same precautions as in the previous nest.  For some time, we think this bird was a Black Swift, but the consensus is toward White-chinned considering rounded head and small nostrils (vs flatter head and larger, oval-shaped nostrils in Black Swift).
White-chinned Swift
What a great experience.  I don't recall the last time I saw two lifers in the same day in Panama... and certainly, these were HUGE lifers.  There were only two previous records of White-chinned Swifts in Panama (two specimens far away the western highlands), and none of the Spot-fronted Swift... so I'm a happy man!  Thanks Craig for the great job you're doing with these discoveries... I'll wait for the publication!

Sunday, June 1, 2014

Bird of the Month: American Oystercatcher

The American Oystercatcher (Haematopus palliatus) is a relatively large wader, inhabitant of coastal habitats all over the Americas, except the western coast of North America where it is replaced by the Black Oystercatcher.
It is brightly colored, with intense orange/reddish bill (laterally compressed to open bivalves) and orbital ring, pale pink legs and black hood.  In flight, notice the clean white uppertail coverts and the white base to the first three or four primaries, making this birds members of the nominate subspecies which is resident in the Pacific coast of Central America, including Panama.
This species is a year-round resident at our Pacific coast, where it prefers sandy beaches close to rocky areas.  Probably some northern migrants show up in Panama, explaining the few sightings at our Caribbean coast.  Many maps in the web doesn't show Panama as part of its breeding range.  However, breeding success has been recorded in the Azuero Peninsula, Panama Oeste province, Coiba island and the Pearl Islands (where I took the next picture showing an immature bird -notice the brown-tipped bill-).  It was considered rare and irregular in the former Canal Area.
However, a pair or two are regularly recorded in the coasts of the former Canal Area's west bank; an area that has experienced a tourism boom, with several mega hotels built recently.  As I mentioned in a previous post, my wife and I found a pair close to one of these resorts feeding a recently fledged young.
Notice the bill shape of this chick, not yet elongated.  As you can see, it was in a sand bar.  The adults flew to a nearby rocky shore exposed during the low tide.  It is interesting to see that they are doing well in these coasts.  For these, and many other reasons, is why we chose the American Oystercatcher as our Bird of the month!
Literarture consulted:
1.  Angehr G, Dean R.  The birds of Panama. A field guide. Zona Tropical 2010.
2.  Ridgely R, Gwynne J.  A guide to the birds of Panama. Princeton University Press 1989.
3. American Oystercatcher Working Group -Systematics-.  At http://amoywg.org/american-oystercatcher/systematics/

Monday, May 26, 2014

Code 5: Maguari Stork

Yesterday, late in the afternoon, I received a message in my phone with a cropped picture attached.  My friend Venicio "Beny" Wilson send me a picture of a bird that he just saw some minutes before, along with Rosabel Miro and Celeste Paiva (the spotters).  The picture quickly filtered to social networks...  they just found a new species for Panama: Maguari Stork (first report in Xenornis here).  Knowing how huge this was, I planned a trip to Juan Hombron area, where the bird was found.  I knew time was against me... these vagrants don't stay long... but I had to go to work, and could only escape after noon with my friend Rafael Luck.  In the meanwhile, my friend Osvaldo Quintero, along with Rafael Lau and Beny, went to the area this morning... finding not one, but two Maguari Storks!  Osvaldo kindly let me use one of his photos.
Maguari Stork.  Copyright Osvaldo Quintero, used with permission.
This was great!  Two individuals still in the same place where Beny saw it the day before.  Beny waited for us close to the site and showed us the exact place where they saw the birds just some hours before.  Our expectations were high, and we checked every corner of the huge lagoon where they saw the birds.
As you can see, I left without even wasting time changing my outfit!  The excitement of twitching a rarity is enough to left everything behind, even your rubber boots and most of your birding gear!  I'll kill the suspense right now: we do not find the bird.  Big disappointment considering that it would be a lifer for both Rafael and me (as it was for Beny the day before).  Nonetheless, we saw some common inhabitants of these dry pastures, like Mouse-colored Tyrannulet and Straight-billed Woodcreeper (both noticed first by voice).
Mouse-colored Tyrannulet
Straight-billed Woodcreeper
I also managed my first Bare-throated Tiger-Heron for these pastures.  In fact, this bird was showing its bare, yellow throat.
Bare-throated Tiger-Heron
OK, we do not find the bird... but we tried hard... and that's the idea after all.  I hope that it still remains in the area although seems improbable, maybe we can have another chance.  In the meanwhile, I'll try to focus in another code 5 for our area (yes, two code 5 in one month for Panama)... so stay tuned!

Sunday, May 25, 2014

Beach walk

Celebrating our sixth anniversary, Gloriela and I decided to spend a night at a beach resort, just 15 minutes from Panama City.  We had a relaxed and happy day, and enjoyed the amenities available... including the sandy beach.
During our beach walk this morning, we took the opportunity to see birds and other wildlife.  For example, we followed the tracks of a racoon for a while, and a pair of Central American Agouties walking close to the sand, but close to cover of course.
Central American Agouti
After seeing most of the common birds expected for this habitat, we saw one specialty of these coasts.  A beautiful patterned American Oystercatcher flew very close to us, and I managed to take a couple of flight shots... of which this was the best.
American Oystercatcher
The bird landed in a sand bar very close to a patch of mangroves.  There, another oystercatcher was resting in sand.  These waders are great.  The contrasting and specially-adapted bill is quite striking in the distance... and those expressive eyes... WOW!
For some reason, the first bird seemed agitated, confronting us directly.  I assumed he was protecting its territory, or maybe had a nest nearby, so we move slowly, following our tracks.  We forget the incident and walked all the way to the end of the beach... a long beach by the way.
Then, in the way back, we saw again the oystercatcher from a different angle.  The bird was standing behind the sand bar, at the banks of a small stream bordered by mangroves.  I noticed another shorebird close to the oystercatcher.  First, I thought it was a peep, but soon realized it was a recently fledged chick!
We stayed away to not disturb the birds.  That's why my photos are quite cropped and edited.  The bird noticed our presence, of course; however, they continued their activity, with the adult feeding the small one.  Then, the second adult appeared... carrying a juicy oyster!
The bird gave the oyster to the other adult oystercatcher and left the scene towards the rocky shore, certainly looking for more yummies.  Then, the bird dropped the oyster near the chick and this began to devour it with pleasure.  We left the happy family, busy with their duties.  That was the first time we saw an oystercatcher chick... not bad at all for a short walk!

Monday, May 19, 2014

Last days of migration

At least in Panama, the migration season is almost done.  Most of the migratory species are already in their breeding grounds in the north, or passing swiftly through Panama.  As mentioned in my previous post, I went to Panama Viejo searching for migrants (although I ended photographing herons instead).  By far, the most common migrant were the Laughing Gulls.  This is the most common gull in Panama, but it does not breeds here.  However, big flocks of this species (mainly immatures) can be seen during the summer.  By this time is not rare to see beautiful adults in alternate plumage among the immatures and basic-plumaged adult birds!
Laughing Gulls
In the other hand, the Franklin's Gulls are only passage migrants in Panama, with only few spending the winter in our coasts.
Franklin's Gull
Notice the dark half-hood and broad eye crescents.  Also notice the black-and-white tips on primaries.  The Franklin's Gulls are also smaller and stockier than the Laughings, field marks that helped me to identify the few Franklins among the hundreds Laughings resting in the sand.  And the thin, long and orange bills of these two terns helped me to identify them as Elegant Terns.
Elegant Terns
Like the Franklin's Gulls, the Elegant Tern is an uncommon passage migrant through Panama... and only in the Pacific coast.  As you can see, the bright orange bill added some color to the monotonous shades of white and gray typical of the gulls and terns.  But if we talk about color, then another migrant win the prize:
Ruddy Turnstones
Yes!  This pair of Ruddy Turnstones almost acquired its full alternate plumage... so colorful!  They are always fun to watch.  So what are you waiting for... there is still some time to catch some late migrants!

Wednesday, May 14, 2014

Herons at the bay

Some days ago, I stopped at the Panama Viejo mudflats to check the migrant shorebirds and gulls that spent the winter in the site.  However, I was impressed by the number of resident birds present in the area... particularly herons.  The most common were Great and Snowy Egrets.
Great Egret
Snowy Egret
Both species breed in Panama... in fact, notice the bright colors of the bare parts and the elongated plumes in the back of the Snowy Egret pictured above.  However, there are relatively few nesting colonies identified in Panama (heronries).  Another species that breeds in Panama is the Tricolored Heron.
Tricolored Heron (immature)
This individual is an immature due to the rufous tones in its plumage.  I usually see only few individuals of this species in these mudflats.  In the other hand, the Little Blue Heron was very common, both immature and adult birds.
Little Blue Heron (immature) 
Little Blue Heron (adult) 
Curiously, this species is considered a rare breeder in Panama; however, as mentioned earlier, this species is very common and present year-round in our country.  Also present in the mudflats were both Yellow-crowned and Black-crowned Night-Herons.
Yellow-crowned Night-Heron
Black-crowned Night-Heron (subadult)
These birds are more active at night, when those specialized eyes are really useful, but they seemed to be comfortable during daylight as well.  Nice collection of species... add the Green Heron present at the river and the other resident waterbirds like pelicans, cormorants and White Ibises and you get a colorful collage for the site.
White Ibis
In the adequate season, you can also see Cocoi and Great Blue Herons in these mudflats.  In fact, I took the next photo some months ago.
Great Blue Heron
Two or three Cocoi Herons were feeding close to this Great Blue Heron that day.  So, in a good day, you can get nine different species of herons in this site... and you only need to move farther east to get up to four more species (Cattle Egrets, Capped and Striated Heron plus Bare-throated Tiger-Herons are present in the marshes around Tocumen for example)... hmmm, sounds like a challenge!

Sunday, May 4, 2014

One of our resident Setophaga warblers

Setophaga is a genus of wood-warblers that includes most of the former Dendroica warblers with which we are very familiar... these colorful and lively little birds that spend much of their lives in our land.  This because most of the Setophaga warblers breeds in North America and the Caribbean, and are present in our country as winter residents... in fact, most of these are commoner in winter than most of our resident wood-warblers (mainly Basileuterus warblers).  However, two Setophaga warblers do breed in Panama.  One is the Tropical Parula.
Tropical Parula
Despite being Setophaga (genetically), it is still hard for me to consider it next to the former Dendroica warblers.  Is something about its smaller size and chunky shape (and the fact that it is still known as parula).  However, the other resident Setophaga is quite distinct: the Yellow Warbler.
Yellow "Mangrove" Warbler (immature male)
Well, for many people, the above photo shows something different to the usual Yellow Warbler.  Broadly defined, the Yellow Warbler is the most widely distributed Setophaga warbler, ranging from Canada and Alaska to northern South America; however, the groups breeding in Central and South America and in the Caribbean are sometimes considered a full species, the Mangrove Warbler.  At least in Panama, this is an aptly name, because it is restricted in the mainland to mangroves.  In fact, this species is the symbol of the Panama Audubon Society and other NGOs in their campaign to save this critical habitat in the Panama Bay.
Yellow "Mangrove" Warbler in a sticker to save Panama Bay's mangroves
Evidently, the amount of chestnut in the head and breast is different to the northern populations (the aestiva group).  The males of the group present in Panama (erithachorides) have entirely chestnut heads, while the petechia group (the Golden Warbler, mainly in the West Indies) have little chestnut in the crown.  I took the next photo of an adult male Yellow "Mangrove" Warbler in Panama Viejo, close to home.
Yellow "Mangrove" Warbler (adult male)
This bird was singing.  In fact, it sounds exactly the same as the northern populations.  Certainly they are closely related, and the debate will continue for sure.  For now, I'm glad to have such a beauty so close to home... our own resident Setophaga warbler!