Thieves in the Night

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Canivet’s Emerald Hummingbird showing off her beautiful feathers

Kanahau has four resident hummingbirds that I have been putting out feeders for. I started putting the feeders out so that I would be able to get a better photo of these amazing little birds, however they have worked much better than I could have expected. It turns out that sugar water isn’t only popular with intergalactic giant cockroaches dressed as farmers (got to love Men In Black!). The birds have taken to venturing into our rooftop office to check us out as they appear to be particularly curious and I like to think grateful for the treat. Not only is the humming sound (after which the birds are named) very relaxing whilst I work, I’ve managed to get a fair few decent pictures, not easy with a bird who’s wings flap around 50 times per second.

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Waiting in line

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Resting her wings for a moment

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Almost reaching the perfect treat

We wanted to encourage the birds to hang out on the front porch area, so that we could get a cheesy, Snow White inspired welcome upon arrival. This feeder however, seemed to be getting drunk a lot quicker than the other despite there being no new Hummingbirds (it needed refilling once a day as opposed to twice a week like the other). This was quickly depleting our sugar stockpiles!

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Full extension of the wings

So one night I went out to play investigator and caught the thieves in the act…

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The thieves!

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Having a quick taste

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Enjoying the sugar water

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The Hummingbirds are happy, the Bats are happy, my coffee taste rather unsweetened!

Turns out everybody loves sugar water!

For more information on Kanahau and their projects, please visit their website:

http://www.kanahau.com

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Hanging Out With Bats

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Aside from Iguana research Kanahau are carrying out research into some of the other animals on the island. I’ve been working on a population study of the island’s bats. With the study coming to an end we have so far recorded 12 different species on the island and the results are likely going to be published next year.

Catching bats is a much easier affair than catching iguanas and makes bat days a welcome rest from the days spent in the mangroves. We assemble ‘mist nets’ in the flight paths of the bats. We set up the fine mesh nets before sun down and then all there is left to do is wait for the bats to emerge. As the light gradually deserts the land and leaves us in darkness the first few bats start to venture out in search of food. When the bats inevitably begin to tangle themselves up in our nets we begin to ‘process’ them. This involves identifying the species, weighing, measuring and marking the bat before releasing it off to go about its business as if undisturbed. When handling the bats it’s very important to do so carefully, their limbs seem particularly fragile and damaging them is the last thing we’d want to do. It’s also imperative to avoid getting bitten. Bats are susceptible to becoming carriers of rabies. None of the bats seem to be in any way aggressive and I have all of the necessary jabs, so I am basically safe, but its best to be careful!

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Andrea carefully retrieving a bat from the net

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Checking out the bat before taking measurements

 

 

 

 

 

 

 

 

I currently live in Kanahau ‘mission control’, which is located next to the bat caves of Pumpkin hill. In the caves it becomes quite obvious that these animals have no understanding of the concept of personal space, each one flying as close to you as possible for closer inspection of the alien creature changing the usual landscape of their homes. At the start it felt a lot like I was Christian Bale discovering the Bat Cave in Batman Begins, it can be quite nerve racking, especially when you first begin to move around and before you learn that the bats probably aren’t going to crash into you any time soon.

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A bat just pushing off from the roof of the cave

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Lots of flying bats!!

The caves are a fantastic resource for us to use as they have an extensive network of tunnels and chambers in which house many different species of bats. One of which we believe to be the impressive False Vampire Bat. This is a huge bat that feeds on mammals, birds, reptiles and even other bat species (unlike the true vampire bat which consumes only the blood). As of yet I haven’t seen one of these fascinating bats, but we are encouraged by the amount of guano (bat poo) that they’re leaving behind in the caves. False Vampire Bat guano is distinguishable as within the stool is often remains of undigested animal, feathers or some fur for example, lovely! Despite this one remaining ever illusive, I’ve still managed to get a few decent photos from the caves.

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Greater False Vampire Bat seen in March 2014 (photo taken by Steve Clayson)

The work being done here with the bats however, is sadly being stifled by the lack of software for a piece of equipment (Wildlife acoustics SM2) that was recently donated to the project. The software allows them to identify bat species by the noise of their calls, with this they would be able to improve their population study and be certain that there aren’t any sneaky species avoiding capture. We also lack and are wanting to building a harp trap, this is significant as certain bats are able to avoid our mist nets and this trap may allow us to catch the bats we have been unable to before. Because of this it is quite possible that our 12 species might actually be 13 or 14 species.

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Me and Kathy about to climb down from the bat caves

This is both terribly frustrating and genuinely exciting. It is frustrating to see important research being slowed down by a lack of equipment and with so much research to be done on this island it seems budgeting for each project and acquiring funds is a very difficult task. It is however encouraging that with the eventual acquisition of these resources, there may be more secrets to be uncovered from this island. An island this bio-diverse and an organization with such a vast scope of research means there are so many opportunities for incredibly exciting projects here.

Bats are responsible for the pollination of many plants on the island and are responsible for the distribution of the seeds from the forests, which are constantly under threat of being chopped down by short sighted developers and locals who are unaware to their importance in balancing the island’s ecology. Therefore, Kanahau envisages that future conservation efforts need to be focused on education.

 

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Waiting for the perfect shot

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Capturing these beautiful animals in flight