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Sunday, May 28, 2017

A Nice Paddle

My wife and I decided to enjoy the long Memorial Day weekend with a short kayak trip today. It was the first time we had had the boats out this season. Which meant a lot of work cleaning out all of the junk, especially empty boxes, from under the kayaks in the garage so we could get them out. The tide was running high this morning and the forecast was for rain in the afternoon, so after an enjoyable breakfast of homemade bread and coffees, we packed the car and headed out. We wanted to avoid the likely boat traffic of the holiday weekend so we didn't go to our usual put-in. Instead, we took advantage of a friend who had offered to let us launch from her dock. From there, we could ride the high water south through a marsh to a little sandy beach right behind a large marina. The beach is only accessible from the marsh during high tides.




We leave Janet's dock, turn under the road we drove in on and BAM there are two bald eagles, a red-headed woodpecker, and two more kayakers. We point out the closer eagle to them and they are impressed. It is just sitting up there for all to admire. We see what looks like an eagle nest a little further down creek but couldn't verify that it was in use (a missed opportunity to verify them as breeding in the area but I imagine there will be other opportunities or maybe someone has already confirmed it for the VA Breeding Bird Atlas.)

The water was really high today. Sometimes when we have been back here it is tough getting through the winding channel. Today we can occasionally see the tops of grasses sticking above the water along the edge. We probably "off-roaded" several times and didn't realize it.

Sharon stopped and picked up some trash and collected a few friends. Periwinkles were everywhere trying to hold on to anything above water, even an old potato chip bag. They rode with us for a while.

Red-headed woodpecker
 There were also at least a couple of gull-billed terns. These two were waiting out the winds on someone's pier. Until a few years ago, I hadn't seen one. This year I saw 8 on the spring bird count. And now 2-3 back in here. I wonder if they are expanding their range?

Gull-billed terns
We paused for a few minutes on the sandy beach which was our turn-around point. Several years ago we paddled out here and had lunch and then waded into the creek and found a seahorse. Today it was too cool and windy for anything like that. We both had long-sleeved shirts on. And it was a good thing as the wind coming off the bay was quite chilled. We were waiting out a jet skier who had passed us going inland and we could see returning towards the marina. And we waited. And waited. And then he popped out a different opening in the marsh. After waiting for another boat to approach, they also landed on the beach, we headed across the inlet from the bay for where the jet skier had emerged. At least we had some circumnavigation in for the day. We then poked around a few side channels until the wind and clouds told us it was time to had back. Along the way one of Sharon's periwinkles calls out to a friend so we pull over and drop them off. They will be happier here than back on the dock.


It was a nice paddle to get back in he swing of things. And we got home just in time. It turned from sprinkles to heavy rain as we pulled into the driveway. At least it washed the salt water off the boats.


Thursday, March 16, 2017

Hummingbirds of Costa Rica

One of the great joys of birding in Costa Rica, and probably anywhere in Central and South America, is the great number of hummingbird species that can be found. Here is a small collection of the 12 species that we saw.

Crowned Woodnymph at Villa Blanca

Green-crowned Brilliant at Villa Blanca
Green-crowned Brilliant at Villa Blanca
Scaly-breasted Hummingbird at Lost Iguana

White-necked Jacobin at Lost Iguana



Monday, March 6, 2017

Birding Villa Blanca

My previous post started talking about the birding vacation my wife and I took to Costa Rica. This post will focus on the birding, and other nature findings, at our first stop, Hotel Villa Blanca.

Villa Blanca sports 36 cabins around the property plus a main building and several smaller outer buildings. Around the property are several self-guided trails plus a few trails are only available for guided tours or by special permission. In the day and a half that we were there we covered only a small bit of the trails.

Common Chlorospingus next to our cabin
There was a lawn area between the main building and our cabin. Most of the time we headed out, there would be new birds here to stop us. On our first walk around the property we encountered a mixed flock of birds here. The rather common and difficult to say common chlorospingus (formerly the much more comfortable common bush-tanager). They were probably the most common bird we encountered here. And seeing one of them foretold many other birds coming soon. In this garden area there was always a bananaquit happy to join in the ruckus and a rufous-tailed hummingbird looking for someone to run off.


Bananaquit

Rufous-tailed Hummingbird
On our first morning the fog was heavy; we could barely make out the singing melodious blackbird across the path from our cabin. Then as we start up the stairs and across the lawn to breakfast this bird landing on the railing just ahead of us.


This orange-bellied trogon was hawking insects from the railing and low lampposts.

At the far-side of the lawn was the start of one of the self-guided tours that led to a hummingbird garden.


The first 50 ft of the trail was always productive. Our first time on it gave us looks at very good looks at several hummingbirds including an unexpected fiery-throated hummingbird. The fiery-throated is supposed to be at higher altitudes but after breeding they sometimes stray beyond their normal territories. While I didn't get a photograph, we did get excellent looks and could eliminate all other possibilities. On both eBird and the local checklist, this was a first for the property. And we had been in country less than 24 hours.

It was late in the breeding season so the hummingbirds were still being protective of the feeders and flowers (they really like the porterweed) so the density of hummers was low. But the variation was still high; at least for us.

There is a research center on site and on the second afternoon we wandered in and talked with one of the researchers, Estafan. The researchers also act as the nature guides on the property. Estafan looked up possible reports of the fiery-throated hummingbird for us. He then gave us permission to walk any of the closed off trains and suggested the long Henri Pittier trail. This is such a good location that it has its own eBird hotspot. It was a very nice trail but much less used and maintained than the others so we never made it all he way around. We added another 20 or so birds on this trail including another orange-bellied trogon. As we returned we saw a long line of leaf-cutter ants and discovered the purpose of some large mounds we had passed.

Leaf-cutter Ants on the March

Leaf-cutter Ant Mound


The mounds are part of the ants' nests. We found out later that the brown substance that we thought was dirt is actually the cellulose from the leaf bits that aren't broken down. The ants bring back bits of leaves to feed to fungus that they farm. They eat the fungus, not the leaves. But the fungus can't break down the all of the cellulose in the leaves. So the ants discard it just outside the nest holes.

Red-eyed tree frog
On our second, and last, night at Villa Blanca we had arranged for a night tour. We started by looking for some nighttime birds and saw a common pauraque flying low of the grass catching bugs. Our guide, Jave, knew of a tree that often had roosting birds in it and we found brown-hooded parrots and grey-headed chachalaca. We searched all around with flashlights and found several small tree frogs. Right before the end of the walk Jave tracked down a red-eyed tree frog; the iconic rain forest frog.

And as a bonus, we got to go with Jave to release a boa constrictor that Estafan had found earlier in the day. The snake really didn't want to go and Jave had to try several times to get it to release from his arm. Luckily, the are slow constrictors and probably any able-body human could unwind it as quickly as it wound itself around you.

Boa Constrictor
There is much of Villa Blanca that we didn't get to visit and I'm sure many more birds to be seen. We saw 51 species there over 10 checklists. It is some place we would love to return to and spend more time at. There are many more trails to be explored.
Green-crowned Brilliant