November 09, 2009

125 birds, and pranking Castro

We made it to the season goal of 100 birds... We surpassed it, blew it away actually. As of November 8th, the end of the crew's trapping season, we caught 125 Island Scrub Jays. Highlights of the bunch (for me) included many territorial birds in the Portezuela and Coches Prietos field plots. The best capture came yesterday. The territorial male of the Polaris territory in Coches had been eluding capture for almost a year. Baited foot snares didn't work. The peanut and box trap did, but he then pulled a Houdini and escaped out of the bird bag before removal for banding. Needless to say, this bird had been around the block. He didn't trust us anymore. Although he still liked peanuts. It was time for drastic measures. Our last resort was the bow-net. (The bow-net consists of two U-shaped metal arms with a net hung loosely between them. The net is spring loaded. To set it up you fold it in half and place the loose net up near the now stacked arms. To spring the trap you pull a string attached to a trigger that releases a clamp holding the two arms together. The springs do the rest of the work. And it's fast. And scary. So we only use it as a last resort.)Katie and I set up the net in some grass in Polaris' territory, then covered the arms with clumps of grass we pulled up. We carefully placed some peanuts in the sweet spot in the top center of the trap. Then we set about luring the Polaris male in. It took a while to find him, but he couldn't refuse the free peanuts. Everything was going smoothly until he noticed our intent watching of him. (and insistence that he take peanuts from a particular spot in the grass.) He was suspicious. So Katie and I employed another tactic: act like we don't care what he's doing, and we're not paying attention. This worked well enough to get him into the trapping area, but as soon as we moved back into trapping position he backed off and watched us from the nearest buckwheat. At this point Katie decided to move off and try finding the Ursa pair across the road, and I decided to make the trigger string longer. As I was kneeling down on the ground, knotting the strings together, I could see the Polaris male deciding that I was obviously preoccupied. He began making trips into the trap, caching peanuts, and coming back for more. This was the opportunity. I remained kneeling, with my body sideways to the bow-net, giving the appearance that I was still busy, and pulled the trigger the next time he went back for peanuts. It was a success. The unbanded Polaris male is now BRB/AY. He will never trust a free peanut handout again I'm sure.

Castro, our resident front yard Island Scrub Jay, really likes to forage for loose peanuts in our field truck, the Aphelocomobile. Every time we pull into the drive from a day in the field he waits until we've vacated the truck, then hops down from the nearest Eucalyptus branch, onto the rails, and into the truck. We can see him hopping around in the backseat, poking in the cracks in the cushions, and frequently making trips back to the edge of the open driver's side window to peck at his reflection in the side view mirror. (We're not sure that he recognizes himself or not, or why he seems to take such pleasure in pecking at his reflection.)


Photo credit Ben, (spring 2009)

Colin had the idea a few weeks ago to play a prank on Castro. He wanted to hide in the front seat under some jackets, wait for Castro to hop into the truck, then pop up, scaring Castro out of the truck. The first pranking attempt was carried out by Colin, but for some reason, Castro didn't show up that day. The next attempt was mine. I piled some jackets on top of me, crunched down into the foot box, then waited. It didn't take long. I heard the smack of feet and jangle of bands as Castro hopped down onto the truck. Then a little closer as I heard him land on the open window. Then a hollow thump as he hopped down onto the driver's seat. I threw off the jackets to see Castro jump up in surprise, quickly regain his composure, and fly out the open window he came in. He didn't go far. Just landed on the rail in the back of the truck and looked at me inquisitively through the back window. The next day he was back in the truck again. Obviously the little shock he received wasn't enough to keep him from searching for peanuts in the Aphelocomobile.

Today I said goodbye to Krusty, Bill and Hillary Clinton, and Castro and Dahlia up at the cabins. Today we leave on the boat for the mainland... until the next season.

November 08, 2009

Santa Cruz Island FALL BIRD LIST (as seen by the crew)

Seen on the island, or in the waters immediately surrounding the island (aka, Santa Barbara Channel, or just offshore)

Island Scrub Jay (well, of course.)
Orange-crowned warbler
Rufous-crowned sparrow
Black phoebe
Anna's Hummingbird
American Kestrel
Red-tailed hawk
Common raven
Lesser goldfinch
Bushtit
Brown pelican
Horned lark
Bewick's wren
Acorn woodpecker
Northern flicker (red and yellow shafted)
Western flycatcher
Hutton's vireo
House finch
Wilson's warbler
Phainopepla
California quail
Western gull
Blue-gray gnatcatcher
Allen's hummingbird
Spotted towhee
Song sparrow
Mourning dove
Western meadowlark
Black-headed grosbeak
Brandt's cormorant
Black oystercatcher
Barn swallow
Eurasian collared dove
Black-throated gray warbler
Chipping sparrow
Great blue heron
Red-breasted nuthatch
White-throated swift
Hermit thrush
Lark sparrow
Warbling vireo
Western tanager
Brown-headed cowbird
Say's phoebe
Fox sparrow
Prairie warbler
Sharp-shinned hawk
Cooper's hawk
Western wood-pewee
Rock wren
House wren
Winter wren
Lazuli bunting
Peregrine falcon
Common yellowthroat
Blackpoll warbler
Lincoln's sparrow
Cliff swallow
Green-tailed towhee
Northern rough-winged swallow
Heerman's gull
Double crested cormorant
Spotted sandpiper
Yellow-rumped warbler (Audubon's)
Yellow warbler
Red-breasted sapsucker
Pectoral sandpiper
Bullock's Oriole
Ruby-crowned kinglet
Ash-throated flycatcher
Loggerhead shrike
Merlin
Vesper sparrow
Killdeer
Townsend's solitaire
Red-naped sapsucker
Dark-eyed (oregon) junco
White-crowned sparrow
Northern mockingbird
Wilson's snipe
Cedar waxwing
Brewer's blackbird
Common poorwill
European starling
Northern waterthrush
Burrowing owl
Northern saw-whet owl
Band-tailed pigeon
Townsend's warbler
Golden-crowned sparrow
Western grebe
Black-bellied plover
Common loon
Northern harrier
Hermit warbler
American robin
Mountain bluebird
Osprey
Golden-crowned kinglet
Purple finch
American goldfinch
Black turnstone
Varied thrush
Brown creeper
Pelagic cormorant

Sorry it's not in taxonomic order... I'm too lazy to take it out of our rough sighting order.

October 24, 2009

Breaking records and taking names



We have reached 91 birds.

We are 9 birds away from our seemingly lofty early season goal of trapping and banding 100 Island Scrub Jays. Yesterday was a record day of 7 birds in about 5 hours. Previous records, (set by Katie and I in Coches of 4, and then later of 6 in the same area) were smashed by the team effort of Colin, Katie and I. Katie had scoped out our sweet spot about a week ago during an island wide oak survey that we conducted. The whole process of banding, gathering morphological data, taking feather and blood samples, taking bill morphology photos and release takes about 30 minutes per bird. We were maxed out. While I was banding, checking for molt, and ageing one bird, Katie was finishing processing another, and Colin was pulling the trap on the next bird.

Today our stellar team managed to capture two birds in the live oak stands on the ridges surrounding Diablo, the highest mountain on Santa Cruz. Not knowing exactly where the birds would be, or if they would even be interested in peanuts, capturing two was a good day. On the drive up in the morning we were treated to a beautiful sunrise over the central valley, looking east, towards the mainland.



Colin, Sinead and I took a day off on the island recently. Sinead and I woke up with the rest of the crew and caught a ride to the Coches plot, then hiked to the beach. We spent a few quiet hours chatting in the sand and wandering the beach.



On the beach we saw the resident ISSJ pair, one of whom likes to sit in a snag looking over the ocean (not a bad life.) Also spotted were a Yellow-rumped warbler, White crowned sparrow, Purple finch, Spotted sandpiper, Western Grebe, and Black bellied plover to name a few. I also found what appeared to be a good portion of a gull skeleton.



Only 9 more birds to the Ultimate Island Reward… Waking up at Christy Ranch, a super greasy breakfast of everything you could think of (eggs, bacon, sausage, French toast, pancakes…) followed by a day off on the West end of the island and exploring Frasier Point.

October 13, 2009

AR/GOY, Krusty, and the gang



This is Krusty. (photo credit Katie)

That's what I decided to call this hatch year bird when I banded it KKK/AR (pink, pink, pink, aluminum, red)a few weeks ago. Krusty likes to hang out with AR/GOY, PUG/AR and a quite a few other hatch year birds in a floater gang that likes to visit the cabins and upset the Clintons, Castro, and Dahlia.

Krusty appears confused a lot of the time. Whether this is a product of his/ her disheveled shape due to the fact that they seem to be molting nearly every feather on their body, or their general slowness to catch onto gang activities is undecided. Krusty is not the dominant bird in his/ her gang. AR/GOY appears to be the ringleader. Krusty just follows along, (usually hesitantly). Krusty hid under the aphelocomobile after grabbing, then dropping a peanut from the trap when another bird approached. When he/ she went right back under the trap immediately after this encounter, Krusty's unbanded days were over.

September 30, 2009

(non) ghost stories, and the jay formerly known as WR/AY

Santa Cruz Island has a rather interesting history as a ranching property. Erosion was the negative legacy left by this era, while many historic buildings the positive. This past weekend Katie, Sinead, Colin and I drove out to the far West end of the island. Our plan was to spend two days and two nights trapping birds on that side of the island. The West end is casually referred to as Christy’s. If I remember correctly, this is because back when the island belonged to one man, Justinian Caire, when he died, he left that part of the island to one of his daughters (named Christy.) There is an old ranch house within 10 minutes walk of a massive beach, as well as a barn and another building. I’m not sure the original function of this building, but it had a kitchen and dining room that we used while we were staying out there.


Supposedly the Christy ranch house is haunted. The story I was told was that it isn’t Christy, but a different woman. This woman was married to the captain of a ship, or something like that, and when she found out that he was trafficking in people (Chinese) up to San Francisco Bay, she jumped off the boat when it passed through the channel between Santa Rosa and Santa Cruz. Needless to say, she didn’t make it. Now, I’m not one to believe in ghosts. But some of the stories I heard, (from pretty reputable sources, and people who also are not the type to believe in ghosts) left me a little weirded out. (Windows slamming open and shut, feet being played with in the middle of the night, pressure on backs of necks and chests, being picked up out of bed and dropped… to name a few.) But being stubborn, I decided that I would just conveniently ignore said stories until I saw for myself. I think I was still the most anxious. Colin and Katie wanted to see something, and Sinead went off to explore the ranch house at dusk by herself.



Nothing happened.

Now that may seem rather anticlimactic, but I blame it on a few factors. Supposedly this ghost likes men more than women. (So our ratio was a bit off.) Things have also most often happened to people who were completely convinced that the whole ghost thing was just ridiculous. (And we all were pretty open to something being possible. Although I did spend a good deal of time the first night being rather jumpy - and then rationalizing anything I saw.) We’ll have another chance for the ghost to make an appearance though. We’re thinking of having a little Halloween shindig out there.

We’ve had success with our trapping as of late. Today Katie and I set a new record for most birds caught in one day this fall. In about 5 hours we managed to catch 6 Island Scrub Jays in our looney tunes style box trap. The crew has set ourselves an arbitrary goal of trapping 50 birds before we open a can of special cheese that we’ve been saving.



Today Katie and I managed to get ourselves to within two birds of that goal. We caught 5 previously unbanded birds, and re-captured one. We have been trapping all new birds, but today I had to make an exception for the bird banded WR/AY. She was being incredibly annoying when I was trying to capture the unbanded birds in the area. Being completely comfortable with the box trap she would jump right under and grab as many peanuts as she could fit in her bill, then take off to cache them. It wasn’t long before she was back again. We were friends for a while, when she showed the unbanded birds how getting peanuts was done, but not later, when she altered her trap entering tactics. This consisted of landing on the top, hopping onto the stick, then jumping down. This was problematic. Often when she’d land on the top the trap would sag to one side. Or when she jumped on the stick it would be knocked off kilter. This meant that the next time she decided to land on the contraption it would collapse. This is not something that you want an unbanded bird who is just getting comfortable with the idea of taking a peanut from under the strange wire box to witness. As a result I kept on having to reset the trap after every time WR/AY came. (Which was a lot.) I was not amused. After about 10 or 15 minutes of this nonsense, Katie, who was down below finishing up processing a bird we had caught previously, could hear me up above letting WR/AY know how I felt about her trap tactics. When Katie showed up and I still hadn’t been able to get an unbanded bird, I decided it was time to pull it on WR/AY. The short lived vendetta ended with me replacing her color bands entirely. She had been banded with 5 bands at one point, but had managed to remove one, and the Red band was nearly gone. (I didn’t even have to cut it off, when I applied pressure it just cracked and broke off.) In honor of the affection that most of the crew has for this bird, (which is more amused annoyance), I banded her UGG/AY. Ugg.

UGG/AY is not the only bird that has incited trapping vendettas. Up in our Portezuela plot there is a newly formed pair of birds. The female is banded OPR/AP. We affectionately refer to her as Oprah. Her unbanded male became Steadman. (After the real Oprah’s long time partner.) Steadman evaded the box trap two times, and landed on the stick another, collapsing it, much to his surprise. So needless to say he was trap shy. We had to employ different methods if we were going to be successful… So we broke out our newly arrived bownet, and set it up for a first time use. Success came eventually, and Colin happily banded his nemesis.

September 21, 2009

To the Aphelocomobile!


Three weeks of our ten week fall field season have already passed. Things are up and running and we are well on our way to the goal of catching one Island Scrub Jay per day on Santa Cruz. (We’ve got 26 new, never caught or banded Jays thus far.) We have been trying unsuccessfully for the past three days to get a Coches day in… That side of the island has been completely socked in in fog all morning. We did an extra field station day, then moved onto a banding blitz of sorts.


Yesterday we caught 4 birds at the orchard on the island. Today was a bit slower. After driving most of the way to Coches before seeing it was completely covered in fog again, we decided to take the ridge road to the bishop pine forest and the sentinela region. We had some great views along the way of the sun rising up over the clouds and fog pouring like a waterfall over sections of the South Ridge on the island. We also took a few goofy crew shots.



The pines being completely socked in as well we continued on down to Portezuela. Katie and I banded while Mario, Jess, Colin, and Sinead tackled the caching and foraging plot birds. Katie and I found the group of floaters we wanted to target for capture pretty quickly. The only problem was that they were not the most cooperative Jays when it came to the trap. One or two Jays would quickly duck under the trap for a peanut about once every half hour or so. A group of about 7 or 8 were all perched around, chuffing and squabbling, but seemingly lacking the guts to go grab the stash of peanuts under the trap. Our only hypothesis as to why they were so timid this morning was the close call that one jay had with a Peregrine Falcon. I heard the incoming whoosh of wings, heard a Jay alarm call as it dove into a big oak we were set up near, then saw the Peregrine veer off at the last second, and blast off in the opposite direction. I watched in my binoculars as it flew away being mobbed by small songbirds. The only Jay we did capture wasn’t of our own doing. One bird flew down to check out the trap, landed on the stick propping up the wire box, and the whole thing collapsed, trapping him/ her underneath. (The stick is attached to a string. Normally we pull it out, trapping the bird underneath when they take their time weighing peanuts, choosing the best one.) When the day heated up we hopped back into the white Toyota that we have now dubbed “the aphelocomobile” and made our way back to the cabins.

September 05, 2009

Time to cache the acorns...

It's the fall on Santa Cruz Island. Which can mean only one thing for the Island Scrub Jays... Time to cache some acorns. (kind of like bringing home the bacon, or making the doughnuts.) The ISSJs are busy plucking whatever they seem to think is the choicest acorns from the oaks and burying them in whatever they seem to think is the choicest hiding place. (Very carefully placing small leaves and rocks over the site, disguising it from any sneaky Jays that may be watching to see where they put their prized possession.)It was all business in the Coches Prietos field plot this morning. Getting close enough to a bird to catch a color combo was not an easy feat. They didn't seem to stop moving, flying from near a ridge top, down to a riparian area, and back again.

It's been great seeing the same birds again. This is the first field job that I've come back to where I know I'm seeing the same individuals from before. Of course I insisted that the first day in the field, on the field station plot, that I would hunt down all the birds that I followed during the breeding season. I found them all, besides two who seem to be MIA. I was very happy to see one of Arnie's fledges from this year (AR/GOY... I call him/ her "Are-goy"), and a bird banded as a nestling in Coches who has decided to make the Field Station plot home. I'm hoping to catch up with the missing birds the next day we focus on the field station.(Obama and Sarah Palin are missing!) I also managed to find the poison oak, and in less than 48 hours on the island got myself all itchy again. It seems to get worse every time, but the good news is it seems to go away faster every time.

Thursday evening we made the short trip to Brian's place. We BBQd up some chicken over the fire, (after thoroughly saturating the ground around the steel fire pit with water), made a salad fresh from the garden, put some cornbread in the oven, and played an intense game of dice (that I won.)Later, after eating, we filled and corked 25 bottles of Brian's wine. He's had this batch going for the past year, made from grapes found on the island, remnants of the days when there was a vineyard and olive oil press. Now the bottles need about 6 more months of ageing to be just right. We had some problems getting a good siphon going... so there was plenty of opportunity for us all to get a taste, and I can say that it's going to be good. (It already is.) I think that we've decided on naming the batch "The Barking Fox," after the island foxes that like to visit Brian's garden and then bark on his back porch. We're planning on a label-making party sometime soon. (At which we will probably open one of those 25 bottles.)

It's good to be back.