Showing posts with label gull chicks. Show all posts
Showing posts with label gull chicks. Show all posts

Sunday, June 10, 2012

Chicks, (the Lack of) Swallows, Contrails and more Chicks!



Apparently gulls don't have Sundays. Who knew. Of course, I had anticipated such a thing but, being a tad lazy, and with Dave being miles away, I started nest checks at a leisurely 8 AM. 10 AM, Sunday brunch time, rolled around and I was still out on the rocky coast with three more chicks to bleed and measure before I would be done... with barely half of my nest checks. I dashed off a frantic text to Kayla and Brendan asking them to save me a pancake or two – for food disappears quickly on Appledore – processed the three adorable little day-old fuzzballs, earning a few nicks on my helmet in the process and a half hour later was finally back in the RIFS lab with eight new blood samples rattling away happily in my makeshift tackle box blood-kit.

After brunch, it was more nest checks and even adding a few late nests to the list, racking up the total number of nests I monitor to 59. Let me tell you, running over precarious rocks with a little ball of Herring Gull fluff clutched to your chest as an angry parent slams repeatedly into your helmet is definitely the greatest adrenalin rush, ever. It was a beautiful, sunny day and after taking twenty or so particularly hard hits from one of the gulls at nest 12 H 283, it was time for a break. I just lay down on a nice, flat rock on Pebble Beach and soaked up the warm sun, the sound of the waves crashing on the rocks and the gulls mewing to their chicks almost lulling me to sleep. It is quickly becoming my favourite rock on the island.

The rest of the afternoon was spent trying to catch Barn Swallows under Palmer-Kinne (P-K) Lab for Brendan's independent project. His research this summer involves putting PIT (Passive Integrated Transponder) tags on the swallows and antennas around their cup-shaped mud nests to record the amount of time each parent spends at the nest, feeding the chicks and such. Basically, every time a PIT tagged swallow lands on a rigged nest, the antenna records the individual's PIT tag number and thus enables us to track each individual bird's activity around the nest. But, to be able to do this, the swallows need to be caught and banded and, unfortunately for us, the little insectivores have amazing eyesight. Brendan set up supposedly "invisible" mist-nets around the entire sketchy underside of P-K but they still eluded us.

Brendan, trying to cordon off the underside of P-K with plastic sheets to try to get the swallows to fly into the nets.


Sketchy underide of P-K, rigged with mist nets

Mostly, we just ended up lounging on the deck, watching planes fly by, their contrails making funny patterns in the sky and eliciting a sarcastic remark from Josh Moyer, the island coordinator, “Now don't work yourselves too hard!” Hey, it was Sunday.



Funny contrail patterns 
After dinner it was time for data entry. But I got very distracted by the Great Black-backed Gull chick outside Laighton being adorable! I spent a good twenty minutes crouching in the grass as it got fed and then jumped around a bit, flapping its stubby “wings”.

Foooood!
Wow, do we really belong to the same species?
I can fly! Maybe!
A portrait of Laighton chick
But we eventually got all of the data entered and are now watching the third episode of Sherlock, season 1. Best. Show. Ever.







Wednesday, June 6, 2012

Gulls and Guillemots, Eggs and Chicks, Playbacks and Nest Checks. Oh, and a few Flowers.

What slaves we are to weather! And by “we” I mean every single living being on this planet. Our ancestors were spot on in worshipping the Weather Gods for, as this last storm on the Appledore demonstrated to me, if by anything at all, everything is pre-destined by weather. Three days of continuous rain, 50 km/h winds and at least 7 foot waves wiped out 30% of our Herring Gull nests – a whole season's reproductive effort annihilated in the five seconds it must have taken for a wave to sweep in or a gust of wind to blow around the edge of a rock. It was a depressing sight, the banks of washed up seaweed and swirling sea foam where nests 12H290 and 12H291 should have been. Even worse was data entry yesterday where Brendan and I had to “kill” the failed nests nests, i.e., complete their “nest summaries” with 0s in the “Number of Chicks” and “Chicks Fledged” fields.

However, it's not all bad news. Many of the surviving nests are now brimming with newly-hatched, adorable, peeping balls of fluff. And as this new wave of life washes over the island, our intern duties have come to include taking blood samples from, measuring, and keeping track of each and every chick. To make it even more of a challenge, Dave left the island today meaning that we are now officially “on our own”. And it's actually quite exciting! 


Chicks A and B belonging to "the nest near Laighton"
After saying goodbye to Dave in the morning, we set off to do our nest checks and quickly discovered that, in Brendan's words, “the pooping was brutal today”. I had four new chicks to bleed and every time I attempted to grab a chick from or return a chick to a nest, the parents dumped their bodily fluids quite generously on me and liberally used my helmet for anger management. But holding the little gull chicks and knowing that, with such awesome parents to defend them, they had a significant head start in life, made it all more than worth it. And somehow, for that one hour that I spent in the gull colony trying to do things on my own since Dave was no longer there for assistance, my, erm, “considerable” fear of needles, completely disappeared. Learning curve successfully ascended! At least for today.

The rest of the day was spent walking from one marked nest to another, setting up a video camera and speakers, hitting record and play respectively, and then running away to hide in the bushes for 15 minutes while the speaker spewed two randomly selected playbacks of yeow calls that I constructed from recordings and the target bird reacted to them. There were a few mishaps where I forgot to hit record, or the camera tipped over mid-playback or the iPod decided to shuffle music started blasting Death Cab for Cutie outside K-house, but overall the experimental set up has worked out pretty well. Thus far, I've completed about 5 nests and it looks like I'll be able to get at least 10 to 15 in before all the chicks hatch (for I can't perform playbacks after the gulls have stopped incubating since then they just fly away from the nest instead of staying put and responding to playbacks). My research question has changed and evolved quite a bit since my first day at SML, but more about that in a later post, hopefully. 


Part of the experimental setup
Last evening, as the storm began to lift and the last rays of the setting Sun peeked through the purple clouds, a few of us went hunting for a Black Guillemot nest. For several weeks now we had seen a few guillemots suspiciously fly in and out from a particular area on the coast of Broad Cove. And sure enough, after a little searching and poking intro crevasses with Captain Zak's awesome light-tube-camera-thing, we found a neat cluster of four eggs wedged under a rock.


View from Broad Cove, after the storm
Brendan trying to "flash-find" a gilly nest
Captain Zak with his light-tube-camera-thing
The light-tube-camera-thing showing us four gilly eggs!
The nest
And then we turned around and enjoyed a very purple sunset. Oh and, earlier in the day yesterday, on our way back from nest checks, we had spotted three Atlantic Puffins (Fratercula arctica) bobbing in the water off of Broad Cove and gotten a good look through a scope. A good couple of days overall. 


A very purple sunset
And, to end what seems to be a very disjointed post, as I read over it again, that I am too tired to fix, here are some pictures of all the beautiful flowers that have started to bloom around the island. I have the gulls to thank for these; the photos are a product of running down trails and diving into bushes in an attempt to get out of a bird's sight before the playback starts up, and then sitting motionless for over fifteen minutes. I've learnt to overcome the fear of it getting pooped on and tote my camera along everywhere.