Grand Junction Audubon Society birders

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EXOTICA II

By Nic.Korte
Thursday, November 10, 2016

The first time I wrote a blog entitled “Exotica,” I was discussing beautiful birds found in exotic locales ( http://www.gjsentinel.com/blogs/birds_and_more/entry/exotica ). This time around, my reference to “exotics” is not so friendly.

Late September and through about mid-November are somewhat between seasons for Western Colorado birders. Most migrants have already flown south and northern weather usually hasn’t been cold enough to push south the many ducks and raptors that winter in our valley. What we are left with are a lot of introduced species: Eurasian Starlings, House Sparrows, and Eurasian Collared Doves.

I recently spent a morning looking for birds near the river on East Orchard Mesa. More than half of the birds I saw were Eurasian Starlings. In my own yard, the most common birds are often House Sparrows or Eurasian Collared Doves. The impact of the Collared Dove on native species is still being debated, but no one doubts that Starlings and House Sparrows have out-competed native species in some cases. On the other hand, these birds will live in human-created squalor that other birds shun. Perhaps, we should be grateful for birds that nest inside traffic lights, road-signs, and in the eaves of gas stations. Maybe seeing the “wrong” birds is better than no birds. That really is the issue. See how many House Sparrows and Eurasian Starlings you find if you walk away from roads and other human alterations. You won't find a single one. So, we can't really blame the birds, we can only blame ourselves.

The facts are, some exotics have been welcomed. Here in Grand Junction, we have our own love affair with an exotic, the Chukar. Grand Valley Audubon Society has even named their newsletter the Chukar Chatter. I’ve noticed over the years, that naming the newsletter after an exotic bird has a love/hate aspect to it. There is pride in the Chukar because many birders travel to Western Colorado in hopes of seeing one. They aren’t very common. They are exotic looking and they thrive in difficult habitat apparently unwanted by native birds. Unlike nearly all other introduced species, Chukars thrive in pristine habitats away from human intervention.
(Chukar as photographed by Jackson Trappett)


But, what about the Rosy-faced Lovebird? These are natives of arid southwestern Africa such as the Namib Desert. Now, however, breeding populations are established in urban parks in and near Phoenix, Arizona. Birders often stop by to see them.
(Rosy-faced Lovebird that I photgraphed in a Phoenix park)


Rosy-faced Lovebirds are pretty, and, perhaps, an improvement over the House Sparrows and Starlings that might otherwise dominate. Actually, I don’t know whose niche they are taking if any, but what we don’t know yet is whether these Lovebirds will eventually be nesting in Denver, St Louis and throughout the country. Or, perhaps, they will go the way of the poor Budgeriger.

Yes, the Budgeriger, the familiar pet parakeet and native of Australia! Enough escaped in Florida that, as with the Lovebird, they were given status as an official North American bird species. For several decades, birders traveled to Florida’s West Coast so they could “count” one. [Here it is important for me to comment: I was not one who traveled to Florida so I could see a parakeet that wasn’t in a cage!] In any event, after seeming to thrive for awhile, the budgies all succumbed to a combination of cold weather and aggressive non-native House Sparrows. Oh, the irony!

The latest exotic to be officially accepted into our avifauna is the Scaly-breasted Munia. If you look them up, you will see they live in Southern Asia. I saw the Munias in Tecolote Canyon Park in the middle of San Diego. Scaly-breasted Munias apparently make good pets. A few, or at least two, escaped and successfully bred, and now they are with us whether we wanted them or not. 

I would not have gone out of my way to see the Munias or the Lovebirds, but being nearby for other reasons, I had a look. The Munias were feeding on a non-native plant growing alongside a concrete-lined drainage channel.
(Scaly-breasted Munia habitat in San Diego. Those dark specks in the middle of the photo are the Munias.)


The message remains clear. If we preserve enough native habitat, we won't have to worry about being overrun by non-natives.


This post provided by Nic Korte, Grand Valley Audubon Society. Send questions/comments to audubongv@gmail.com. [To learn more and to participate in the activities of Grand Valley Audubon, please see our website at audubongv.org and “like” us on Facebook!]
 

20 comments

WHY BIRDERS FLOCK TO COLORADO: PART 2

By Nic.Korte
Friday, October 28, 2016

Our plan was to stop at the Penzey’s store in the Denver suburb of Littleton so we could re-stock our spice cabinet. Mary and I like to cook, and we were out of a few favorites. We don’t go to the Denver area very often so we’d inventoried our spice supplies before leaving for an evening event with the Bird Conservancy of the Rockies (BirdConservancy.org). We were a bit late. We were even a bit cross with each other about it. It was three hours until the event started and as we approached the turnoff to Penzey’s, we remained agitated even though we were less than 30 minutes from the event venue. You must be wondering how we could feel late.

Well, we were running out of time because we were going to squeeze in a quick(?) stop at nearby Chatfield State Park. Chatfield has a large reservoir and a Pomarine Jaeger had been reported. Jaegers are mostly birds of the ocean. Fast and acrobatic in flight, much of their living is made by stealing catches from other birds such as gulls. They are also adept at plucking eggs and young from nests on the tundra. What was it doing in Colorado? That’s a good question. That’s why I wanted to see it. Having a Jaeger in the state is a big deal. It happens most winters, but irregularly, and often only for a few days. Finally, I said, “Let’s just go straight to the park.” Mary was actually relieved. As she told me later, “I was afraid, the traffic, the parking, or a line at the cash register was just going to make us more and more anxious. I can always order the spices on line if I have to.”

So we drove past the turnoff to Penzey’s and went to the lake. Fortunately, about the time I was losing patience with not seeing the Jaeger, a nearby birder found it sitting on the water. To most people it probably looked like a mostly black gull. It was way out in the lake, and without my 45x scope, I couldn’t have identified it.

But then, it took off. Bulky-looking on the water, the Jaeger is a swift and acrobatic flyer once airborne. In the air, it is unmistakably not a gull. We watched as it performed a quick reconnaissance of a sandpit full of gulls and then a full attack on two flying birds. It didn’t appear to be successful stealing their prey, but the aerial agility of the Jaeger was in full display and it was marvelous.

I tell this story because it is another reason “birders flock to Colorado.” In my previous post on this subject, I highlighted our state’s great natural diversity (http://www.gjsentinel.com/blogs/birds_and_more/entry/why-birders-flock-to-colorado). Another birding feature is our state's unnatural diversity provided by the many dams and reservoirs. In pre-settlement days, I have to wonder if a Jaeger ever landed in Colorado. Natural lakes tend to be high altitude and too small. Most didn’t even have fish until stocked early in the last century. What would a Jaeger eat?

Indeed, the top seven locations for bird species in Colorado are all man-made reservoirs and their associated parks—which usually include excellent bird-friendly riparian zones. The Mesa County location where the most species have been sighted? You guessed it! Highline Lake with 225.

(This Red-throated Loon was photographed by Denise Vollmar on Highline Lake.  This was the third west-slope record: two at Highline Lake and one at Vega Reservoir.)

While I was looking at the Jaeger, the various birding networks were reporting a couple of other seabirds in reservoirs on Colorado’s front range: a Surf Scoter and a Little Gull.

(These Surf Scoters were photgraphed by Jacksn Trappett at a small reservoir near Fruita.  Birding guidebooks say they winter on rocky seacoasts.)

In general, I oppose dams and reservoirs. They damage riparian areas which are the most important wildlife habitats in the west, but I also admit that a few are probably necessary if so many of us are going to live here. And, I do enjoy the occasional opportunity to see wandering seabirds that would be impossible to find nearby otherwise.   Besides the birds pictured in this blog, in the past several years our valley has hosted a Black-legged Kittiwake, of which my bird guide says "almost exclusively seen on open salt water," and a Long-tailed Duck--"common locally on shallow open ocean."  None of these birds would be possible in Colorado without reservoirs.  

I couldn’t muse about Colorado seabirds very long. We had an event. We had to be dressed up. We changed in the State Park bathrooms and drove away--only to realize, we would be driving right by Penzey’s. “There’s still time.” It wasn’t so leisurely. Usually, we enjoy wandering a bit and sniffing and discussing various varieties and blends. Instead, I dropped Mary off and continuously circled the busy block which was sans parking. She had a list. She was done quickly. We arrived at the event only a few minutes late and I got to tell everyone about the Jaeger!

{Grand Valley Audubon hosts an annual "Waterfowl Viewing Field Trip."  This year's trip is on November 19.  Everyone is invited.  Check out the website or facebook page for further information.}

This post provided by Nic Korte, Grand Valley Audubon Society. Send questions/comments to audubongv@gmail.com]To learn more and to participate in the activities of Grand Valley Audubon, please see our website at audubongv.org and “like” us on Facebook!]

7 comments

BIRDERS ARE BETTER VOTERS!

By Nic.Korte
Friday, October 14, 2016

Maybe birders aren't better voters, but they should be. In this election season, there is more comment than ever about voters being immune to or uncaring about facts. Indeed, psychologists have shown that oftentimes, the more contrary the fact, the more a person will cling to their entrenched position. It's crazy, but we all do it. It's called confirmation bias, and birders have to work hard to guard against it.

Two years ago, I hooked up with a group of birders in Costa Rica who were going to see the rare Masked Duck. Two or more of the ducks had been hanging out in a small, natural pond on private property. Our leader was the dean of local birders. As we arrived at the pond, she quickly said, “there’s one…over by the shore.” She put her scope on it and we followers dutifully took a look one-by-one, and agreed we had now seen a Masked Duck. I am not certain who finally asked, “Are Masked Ducks usually so motionless?” Our leader looked again. “Hmm, maybe that isn't a duck after all.” Fortunately, about that time, two Masked Ducks paddled out of some nearby reeds. “Oh, there they are,” she said, and all of us had long and satisfying looks both through her scope and our own binoculars. Later we walked over and had a good laugh at the floating shell leftover from a long dead large turtle. What had happened? No doubt, her expectations were so high that we would see a Masked Duck, that the first floating lump she saw confirmed her hopes.
(This juvenile Cooper's Hawk, as photgraphed by Jackson Trappett, can be a difficult identification.)

I saw something similar once when on a field trip at a birding convention. Our group had roused an owl from a low-to-the-ground perch. Someone immediately blurted, “Short-eared Owl! I saw the buffy patch on the wings!” A Short-eared Owl would have been a remarkable sighting for our location. The person shouting the identification probably dearly wanted to see one. Well, the owl landed nearby, and remained perched when we found it again. There were no buffy patches. It was a different species altogether, and one that was expected in this habitat.
(This is definitely not a short-eared owl.)

As I’ve gained experience as a birder, I have become more wary of my identifications. For me, I have learned that I am especially susceptible to seeing the bird I expect. I don’t look close enough and I can miss a rarity. And, I also will admit, there have been a few times I have been like the guy with the owl. With only a fleeting look, I have decided I've seen a much desired species, only to learn that with a closer look, the fieldmarks I “wanted” to see were not really there.
(Scoters in winter, such as this Surf Scoter photographed by Carol Ortenzio, are rare in the Grand Valley and easy to mis-identitfy.)

Maybe these types of experiences make birders better consumers of political theater. Maybe, maybe not. There is a big difference. For the past decade or so, most birders record their sightings on a public database (ebird.org). The database is configured to notify everyone else who might like to see the bird. Others will be in the field trying to see what you think you saw, possibly within minutes. They will let you know if you are wrong—probably with photographs. The database also notifies an expert reviewer who contacts you and requests a detailed rationale for your identification. If you can't do it, the bird is not officially counted. Maybe if our voting rationale was subject to as much oversight, we really would be better voters.

This post provided by Nic Korte, Grand Valley Audubon Society. Send questions/comments to audubongv@gmail.com. [To learn more and to participate in the activities of Grand Valley Audubon, please see our website at audubongv.org and “like” us on Facebook and follow us on Twitter.!]
 

18 comments

THE HUMMINGBIRDS ARE GONE!

By Nic.Korte
Thursday, September 29, 2016

I sat down to write about something else, but looking out the window at the snow on my hummingbird feeder unsettled me. All winter it seemed, I longed for their return. I've been in denial about the approach of winter. No more!

(My hummingbird feeder mount has an inch of snow on it.)

I am writing from a small cabin at 8,300ft. Upon arrival yesterday, I considered whether to put up the feeders. It was a beautiful fall afternoon. The oakbrush on the dry hillsides was at its peak with red and a little remaining green sprinkled through the bright, light brown of the leaves about to fall. Down at the creek, the narrowleaf cottonwoods were bright yellow. I was right on time for these because they do not retain their changed leaves very long. The alders and serviceberries also displayed a variety of reds and yellows.

The aspen in my window view are about half-turned. Those on the mountainside are all yellow. Down here, surrounding my meadow, most are pale green, but interspersed are a few in yellow flame, and even a couple with the rarer red pigment.

My records over 15 years show an occasional hummingbird this late in the season, but as the snow settles on the feeder mount, I know I have another year to wait. The fleetingness of the seasons up here always comes as a shock. It is September 23. A scant four months ago, I saw my first Broad-tailed Hummingbird of the year. Last week I saw the last.

I think about where they went. Almost all went to Mexico: the Broad-tailed to Mexico and Central America, the Rufous to Northern and Central Mexico, the Black-chinned mostly go to Western Mexico and I have seen myself where the Calliopes went—West-central Mexico. Maybe I should go too. http://www.gjsentinel.com/blogs/birds_and_more/entry/mexican-haiku)


(This Rufous Hummingbird has probably been in Mexico for a few weeks already.)

I’ve been pondering why I find the disappearance of hummingbirds so disturbing. There are many things I like about winter: cross-country skiing, snow-shoeing, the holidays, the Christmas Bird Count! I suspect I have an unrealistic yearning that life always be springtime with its promise of warmer days, brighter flowers and new life. Deep down, I’m probably wondering about myself, and whether the hummingbirds have a lesson for me. With their rapid heartbeats (sometimes exceeding 1000 beats per minute), and need to consume (they may eat eight times their body weight in a single day), they have to give life all they have, all the time. I've seen several in the past few days that seemed to drop out of the sky, feed quickly, then rise up high and turn directly south. As I watched them in my binoculars, their usual rapid wingbeats seemed frantic, as in recognition that they had to get out of here, right now!

Will I see them again? There's a question with two answers. How will next spring find me? I hope the same, but life changes. My dad, the family realized after his passing, was an unrecognized philosopher. “You never know,” was one of his favorite sayings. The hummingbirds, with a usual lifespan of only one to two years, are optimistically chasing the spring. They are chasing warmth and beauty and I hope they find it in some Mexican or Costa Rican forest or garden. They will return for our next spring, after the snow has melted, and begin the cycle all over. Life is short. We need to care for it!

This post provided by Nic Korte, Grand Valley Audubon Society. Send questions/comments to audubongv@gmail.com. [To learn more and to participate in the activities of Grand Valley Audubon, please see our website at audubongv.org and follow us on social media {facebook, twitter, instagram}!]
 

36 comments

LET’S GO HUNTING (EARN $500!)

By Nic.Korte
Monday, September 19, 2016

“How was your hunt?” I asked my friend. “Fantastic,” he replied. Then he described watching a meadow for elk while two coyotes trotted out within 10 ft and began howling. He also described being serenaded by owls and listening to elk bugling. Until I asked, he didn’t tell me he hadn’t shot any elk. Contrast my friend’s experience with a person I will call an acquaintance. After his deer hunt, he came home and complained bitterly. He had camped at a nearby forest service campground where he had seen deer in the summer. None had shown up this time. He was angry with the Colorado Department of Parks and Wildlife for selling him a license when “there weren’t any deer.” He even wanted his money back. What a contrast.
(Habitat good enough for triplet fawns to thrive, is great for birds too.)

Hunting does fill me with mixed emotions—just as did the stories from those two hunters. I grew up hunting small game and have harvested quail, doves and pheasants, as well as rabbits and squirrels. At that time and location in my life, it was the only real excuse there was for being outdoors (http://www.gjsentinel.com/blogs/birds_and_more/entry/how-my-dad-taught-me-to-watch-birds). Even then I saw good hunters and bad (those who would blast a squirrel’s nest in hopes of knocking one out, while more likely killing it in the nest).

The reality is that hunting is a necessary part of management of our wildlands. There are numerous examples of the need for game harvests in locations where there are no longer predators such as mountain lion, wolf and bear to maintain healthy populations. It is also true, that many hunters are tireless advocates for the protection of wildlife habitat. For those reasons, most birdwatchers support hunting when regulated by sound biological principles. Which brings me back to the two types of hunters described in my first paragraph.

We own some land adjacent to national forest and we see lots of hunters and hunting camps. Some of the ATV use and camps seem well “over the top.” My inclination is to wish better luck to those who hike well up into the high country wilderness where good physical conditioning, route-finding ability, and understanding of habitat are so important to hunting success.

My musing about the two hunters was also kindled during a recent hour I spent on a stair-climber at the health club. I read two magazines published by organizations that I admire. One was the magazine put out by Ducks Unlimited (www.ducks.org) and the other by Backcountry Hunters and Anglers (www.backcountryhunters.org). Both groups represent hunters who understand preservation of wildlife habitat is more important than their individual success. Duck hunters recognize that ducks and geese are not hatched near where they hunt.   If their sport is to survive, they must ensure the existence of safe refuges for birds to be reared and to rest during migration.
(If the habitat is good for pronghorn, it is good for Northern Harriers and migratory species such as Burrowing Owls.)

To that end, DU honored in their pages a wealthy individual who had given a great deal of money to protect wetlands. He recognized his dependence on habitat protection by many landowners, different states, and even other countries if his sport was to survive. Sadly, the same individual was castigated in two different articles in the Backcountry Journal because he had purchased large tracts of land from which he could block public access to trout streams in order to reserve their use for himself and his wealthy friends. It is a good thing he can't buy all the duck habitat.

Backcountry Hunters and Anglers have a land ethic represented by the experiences of my elk hunting friend.  BHA members are relentless supporters of public land, wilderness areas, and taking care of habitat. I loved it when I read the response of one of the group’s leaders when he was asked what “sign” he looked for when hunting elk. “A sign that says ‘No ATVs Permitted Behind This Sign,’” was his retort.
(Backcountry Hunters and Anglers will pay up to $500 for convictions rerelated to reports of illegal ATV use.)

Indeed, ATV use is very contentious as any user of public lands is well aware. A few years ago Colorado experimented with allowing hunters to leave designated ATV routes if they were retrieving game. Unfortunately, the policy was so widely abused, that the privilege had to be rescinded. The abuse was noted despite chronic underfunding of enforcement.
(Here is some great habitat to search for Northern Goshawk and Western Purple Martins.)

Obviously, many ATV users are law-abiding and stick to designated routes, but the habitat damage caused by improper use of these machines can be long-lasting affecting hunters, fishermen, and all who enjoy wildlife. For that reason, BHA is offering $500 to anyone who reports unlawful ATV use that leads to a conviction (www.backcountryhunters.org ). I hope none of us sees such law-breaking this hunting season, but if you do, report it for the sake of the habitat. You might also earn $500.

This post provided by Nic Korte, Grand Valley Audubon Society. Send questions/comments to audubongv@gmail.com. [To learn more and to participate in the activities of Grand Valley Audubon, please see our website at audubongv.org and “like” us on Facebook or follow us on Twitter!]
 

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