Sunday, October 13, 2013

Eastern Rosellas: Cute as a Crayon!

I'd love to say I hunted down and photographed this bird after grueling hours of nature walks and trying to get just the right shot. The fact is, while I had begun to despair of finding them since my first sighting, one of the birds was kind enough to fly right in front of me and land at a nice height a short distance away. This was despite the fact I had startled her from her perch to begin with. So let's give a round of appreciative golf claps for the Eastern Rosella!

Female Eastern Rosella on a Branch by Celia Gaches

Oh wonderful! That was much better than that raucous din you generated for the Rainbow Lorikeet. I found these birds to be much quieter, so I'd hate for her to--

Escaping Eastern Rosella by Celia Gaches
*sigh*
I suppose she'll come back eventually. In the mean time, here's some facts about the Eastern Rosella:
____________________________________________________________
Eastern Rosella (Platycercus eximius)
Eastern Rosella Distribution MapSize: 29-33 cm (11.4-13 in)
Eats: seeds, fruits, buds, flowers, nectar, bugs
Habitat: open woodlands with grassy ground cover, farmland, crops, gardens, etc...
Behaviors: grazes food on the ground, prefers to live in small flocks
Breeding: August-December, nests in hollows. Incubated by female while male does the food gathering. Leave nest around 5 weeks old. Eastern Rosellas mate for life.
______________________________________________________


Oh look! Our little friend is back just in time for us to talk about her pomp plumage!
Eastern Rosella in a Tree by Celia Gaches
Hello, Gorgeous
As you can see, the Eastern Rosella has a red head and breast which changes to a yellow belly and you can juuuust see how it becomes a light green towards their legs, with some red under the tail. Their shoulders and wings are bright blue. Their back feathers are multicoloured, with the black and yellow-green making the parakeet-like appearance. This scalloped pattern helps them blend into their surroundings like camouflage and it can actually be quite difficult to catch site of them in a tree if they do not move. Their white cheeks give them the "innocent" appearance that put you in mind of a preschool craft kit versus the aforementioned Pride Parade crayon can the Rainbow Lorikeet utilizes. You just want to scratch those little white cheeks until they're all fluffed!

Happy Rosella Drawing by Celia Gaches


In differentiating these Rosellas from the Rainbow Lorikeets, I found their red head was the most obvious distinguishing mark. Their tails are also broad and blue, where Rainbow Lorikeets have longer green tails. The Eastern Rosellas also have a more "undulating" flight pattern (isn't that just the most marvelous word?), where Lorikeets usually squeal, dart, and cavort about like they own the place or something.

In other words, despite both being very colourful birds, the Rainbow Lorikeet is the victorious footballer and the Rosella is just trying to get some reading done, thanks... Or as another fun analogy--everyone loves these, right?--Rainbow Lorikeets are the outlandish frontmen and Eastern Rosellas are more then unassuming but talented bass players.

"I suppose if he LIKES making that much noise..."

There is also a Western Rosella that appears similar, but their cheek patch is yellow and their entire head, breast and belly is a duller red-orange colouration. The Western Rosella also shows more "sexual dimorphism" (the genders look different), with the female only having a bit of mottled red-green on her throat, underside and crown. This species lives in the southwest corner of Australia.

Further Learning!
Birds in Backyards Information Page
Bird Life Australia Information Page


Next Episode: The Spy Who Scalped Me!

Thursday, October 3, 2013

The Gum Tree!

Call me a tree-hugging hippie if you must, but I would like to take an evening (because we're a classy "evening" kind of show here, right folks?) to talk about one of my favorite trees, the Eucalyptus.

Majesty.
Now I know what your thinking. You don't want to hear about no stinkin' tree. I led you on with two whole posts of nothing but flashy little parrots, and now I want to talk about a tree?!

Hang on, now, listen. This isn't any old tree. This tree is California Redwood kinds of awesome.
General Sherman Tree from Bottom
Maybe not so...massively awesome.
My love affair with the eucalyptus actually began as early as grade school, around the time moving to Australia was something you did after a Terrible, Horrible, No Good, Very Bad Day.

I hope your childhood had this
The playground had a row of eucalyptus trees along the back fence, and I loved to pick up the leaves, scrunch them up, and inhale their fragrance. In hindsight, I'm sure I subconsciously knew they were soothing to my chronic allergies, but at the time, I just liked their smell. It was also fun to pick the peeling bark off.

Yah...I swear, I was not as weird and creepy of a child as that makes me sound. I PROMISE.

Anyway, now, I'm surrounded by Eucalyptus. The Eucalyptus Tree is an Australian icon. You can't know Australia without knowing the Eucalyptus. If you think you've gotten away with it, you are wrong.  There are 700-800 species of eucalyptus and they make up almost all of the trees native to Australia. They are present in almost every environment on the continent, except the very alpine tips of mountains and the most arid portions of the interior desert (where they may be found near bodies of water anyway). They're so hardy that they survive well as invasive species of tree in other countries. Some people try to eradicate them because they hog water resources, but they've become a boon to struggling communities in areas like arid Africa, where they've become a economic resource for their timber and their oil.

That's right, these trees are so awesome they help starving children in Africa. Don't you feel guilty now?

The Eucalyptus tree has inspired artists to poetry and painting. It's grace in the wind, it's solitary watch over an empty field. It's grandeur over lesser plants and it's sheltering limbs! Some trees are more humble and only grow to shrubby-heights. Forest and woodland eucalyptus trees tower above the rest! The Australian Mountain Ash is the tallest flowering plant in the world, topped only by a few species of conifer!

"El Grande" Australian Mountain Ash - wikipedia- by TTaylor
"El Grande"
In the fog and the rain, the volatile oils responsible for the trademark aroma of the tree leaves are released. The smell of eucalyptus fills the air, mixing with other scents to create something truly Australian.  As light strikes through the mist, the oil droplets refract away the blue light. This sight was so magnificent that they named the Blue Mountains after this phenomenon.

http://travel.ninemsn.com.au/img/basic-destinations/new-south-wales/blue-mountains.jpg
BOOM. That was your brain. Exploding in wonder.
Eucalyptus oil is what this tree is most famous for in the rest of the world. It is used for its fragrance alone and as a medicinal for colds, allergies, and similar respiratory conditions.  It can be used as an antiseptic and a bug-repellent. I learned today that it is also used as an industrial solvent, which was a little unsettling consider how much of it I breathed on my walk...

It was also a little unsettling to learn that this aura of oil is very flammable. Apparently, eucalyptus trees are a fire hazard. Their oil burns, their bark not only flakes off and acts as wildfire-tinder, but it's a slow burning that encourages persistence of the fire. Branches also have a tendency to just drop, so maybe I should have spent less time under them as a child...

Luckily for the trees, they're also fairly flame resistant. Some trees have resilient bark with resilient names like "ironbark". If their bark does not protect them, they keep little growth buds tucked away so they can blossom forth with new regrowth! The species that can't do this just have hardy "reserve seeds", so they have to start over again. Regardless, a eucalyptus forest is pretty much immortal as long as humans don't interfere.
http://upload.wikimedia.org/wikipedia/commons/thumb/6/65/Eucalyptus_leucoxylon1.jpg/449px-Eucalyptus_leucoxylon1.jpg
kinky little tassles

Speaking of blossoms, the Eucalyptus flower is fascinating.

Those fluffy little tassles aren't actually petals! They're a collection of stamens, which produce the tree's pollen. Which is kinda kinky when you think about it. Eucalyptus just hangs it all out there. No big deal, just pollinating here.

If you grew up around eucalyptus trees like I did, you'll so recognize the leftover woody portion of their seed fruit. Each little cup would have held a little fruit (the famous "gum-nut") that would have dropped or been eaten.
http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=gn&name=Eucalyptus
Gum-nut pods
This is going to sound really weird, but my absolutely favorite part of eucalyptus trees are their bark.

It's worse than their bite! *bah duhn tsssh* ....  Yah not funny moving on.

http://en.wikipedia.org/wiki/File:Eucalyptus_Crebra_bark.jpg
Ironbark
Bark Bark




Eucalyptus trees have a TON of different bark types. Each of these trees is a eucalyptus, but they all have a different bark!


Eucalyptus Trunks by Celia Gaches
Bark Bark Bark Bark! And this is mine, btw. Watermark fail.
You'll notice that some of the trees don't have bark further up their trunk. This is because a number of species have deciduous bark. Holy CRAP that is awesome!  The outer layer will die and peel off in flakes or in long strips. Or sometimes it will sit there as a dead outer coating until it wears away or is removed by bugs and other animals (like children). The best part is that trees that leave the lower half of their trunk are sometimes called "blackbutts".
Shedding Eucalyptus by Celia Gaches
LOL Butt Joke!
Another name for Eucalyptus trees is "Gum Tree". This is a reference to the sticky sap that collects between grooves in the bark.

Many of you will recognize the term "Gum tree" from the song "Kookaburra sits in the old gum tree".  He only thinks he's a king; not many people actually like them all that much because of their noise and tendency to steal bacon.
Which he did.

Other birds will make their homes in Eucalyptus trees, either building a nest on them, or making nests out of hollows and holes in the trunks and branches. Here's a rainbow ninja near a possible nest!

That or a toilet. Hah potty humor. This that "class" I mentioned.
Eucalyptus trees are also known as homes for Koalas. Koalas are notorious for preference certain species of eucalyptus (they'll sniff the leaves to pick their favorites), but they're not actually the pickiest of marsupials. Regardless, the deforestation of eucalyptus forests has a profound impact on the lives of all animals who live there.  So be a hippie, and save a tree! FOR THE KOALAS!

The Rare Rhyming Mustachioed Koala
I only scratched the bark on these elegant eucalypti. If you like to learn more, here are some links! Included... furniture facts, invasive species summary and "How Australian Trees Kill You"!!

Links:
Wikipedia Entry
Australian Gov't Article
PlantNet Article

Sneak Preview!!