Saturday, April 30, 2011

Brown Headed Cowbird. They're here too. :(

I heard the call of a Brown-headed cowbird in a wooded area next to my house today, 4/30/2011. I didn't see it, but I know it's there.  I'm not particularly overjoyed about this, because these birds are a parasite on other species, the welfare bums of the bird world.  They aren't hard to look at, however, so I'll post some pictures of them this summer sometime.

Tomorrow I'll go to Talin market, pick up some quail eggs and make some nests in hopes I can get the cowbirds to replace those eggs instead of the eggs of the birds that live around my house.  I'll post pictures of everything I do, and will let you know if I am successful.

Black-Headed Grosbeaks Have Arrived!

The Black-headed Grosbeaks arrived today (or last night), 4/30/2011. I took some pictures this morning, but I was using a 2x extender at the time and there wasn't enough light so the pictures didn't come out too well.  That's ok -- here's  a picture I took a couple of years ago:

Black-headed grosbeaks are fruit-eaters except during the nesting season. During this time, they eat plenty of grasshoppers, too. But they love strawberry jam, and will spend a lot of time at your jam feeder if you put one up.  See previous posts in this blog for a few jam feeders I've made over the past two years.

Cassin's Kingbirds Have Arrived!

I walked outside and heard the unmistakable call of a Cassin's Kingbird this morning! Two were flying overhead. I saw two more in an oak tree. I ran in and shouted to my wife,

"Babe! What day is it today?"

"Saturday."

"Yes, but what day is it today?"

"I don't know."

"It's the day in 2011 that the Cassin's Kingbirds arrived! It's the first day of spring!"

"No, they've been here a couple of days."

"What? Why didn't you tell me?"

"I forgot."

"You forgot? How could you forget?"

After going back and forth like this for a couple of minutes, we established that their arrival (and the first day of spring) was Thursday, 4/28/2011.

I tried to get some pictures, but they were too far away. I'll go stealth tomorrow morning for a couple of hours when they're most active.

Monday, April 25, 2011

Yellow-Rumped Warbler Arrives!

Dendroica coronata (s. auduboni), the Yellow-Rumped warbler, has arrived! Sibley's says they eat flying insects mostly, and I believe that's true. Although I have a very healthy grasshopper population, I don't think I've ever seen a Yellow-Rumped warbler hunting them. I believe this bird inhabits a hunting niche between 3' and 20' off the ground. This keeps it from competing with the Ash-Throated flycatcher (which actually eats mostly grasshoppers around here) and the Cassin's kingbird, which eats grasshoppers and does a lot of hawking but in open fields.

This bird is easy to identify because its coloration (yellow splashes on high-contrast silver and white), and the way it flits about are both unique and very enjoyable to watch. As you can see in this picture, it's truly a gorgeous bird. Because of how it moves, it's much better "live" than in a still picture.  But that's probably true of any bird.


This is a male of the Audubon's subspecies. He may have arrived yesterday, 4/24/2011, but he might just as well have arrived this morning or a week ago. Every year they nest in the same place; just outside of my yard in a dense 40'x40' successional stand of mixed juniper, pinon and gambel oak, surrounded by a large open field. I can't be sure of the date, because I only see him when I sit down near the thicket for an hour or so, and today is the first time I've done that this year. According to the Natl Geographic text*, this bird arrives in late April. So if he arrived today he's right on schedule. I will check next year starting on 4/10 to get a more accurate arrival date, however.

This is a tough bird to photograph, at least for me. He's nervous and doesn't stay in one place for very long. In fact, he spends more time doing this than anything else:


But what makes it most difficult for me, is that I have to focus manually, because he likes to perch inside the confines of the thicket and that confuses the autofocus too often to make using it anything but a risky endeavor. He rarely hangs out at the edges except when in transit, and he never hangs out anywhere for long. This spring I resolve to set up a comfortable folding recliner, a gallon of ice tea, and sit out there until I get a good picture.

The top picture (blurry as it is) is the best picture I've ever taken of this bird, so I do feel encouraged.


* The Natl Geographic reference text: National Geographic Complete Birds of North America. For quick reference it's not quite as handy or small as Sibley's. But it has more in-depth information and is a needed complement to the Sibley's guide in my opinion.

Saturday, April 23, 2011

Greed: The Corvid Condition

I like to feed crows leftovers, because I know they're going to keep coming to visit my camera until the food is gone, no matter how much food I put out. Many bird species, but especially those in the corvid family, stash away food as insurance against future hunger.

This guy kept coming back until he had disposed of four slices of bread.  At first he took the bread and dunked it in water, I think so that it would go down faster. He ate his fill that way, which probably took fully half of the bread I put out. Once full, he started taking bread away to stash in a safe place, or maybe to feed his offspring.



My wife was telling me she took a fried chicken drumstick out of the fridge yesterday that had been there for awhile, and put it on the feeder platform shown in the pictures.  This crow took it out into our yard and spent the next hour or so stripping off the meat and carting it off. He then left the bone behind and one of our dogs found it.

Greed is not just a human condition. It's a behavior that ensures survival for animals. Next time someone says you're selfish, tell them it's a survival instinct.

Oh, and P.S: That feeder platform?  You're right -- it is a satellite dish.


I am a little disappointed in these pictures. The field of view is too short, and his eye is a little out of focus as a result. But next time I put out food for crows I'll take another shot at it.

Brewer's Blackbird has Arrived!

Sometime yesterday afternoon (4/22/2011), the Brewer's blackbirds (and probably the Brown-Headed cowbirds) arrived.  I took this picture this morning. It's not a very good picture, but I'll take some more after they've had a couple of days to settle down.


So far there are just 3 or 4 blackbirds, and I haven't positively identified cowbirds at my house. But I heard the call of a cowbird about 10 miles from my house when driving home yesterday. So I know the babykillers are in the East Mountains too.

Thursday, April 21, 2011

More on Ash-Throated Flycatcher

This Ash-Throated flycatcher has been hanging around the house waiting for his wife to show up. Chee! Chee! CheeChee! She (if it's the same pair) usually nests in a box on a fence in my yard. I hope she made it this time. He's been here for a couple of weeks already. Unless he is actually a she. I can't tell until I see both of them together.


These birds are master grasshopper hunters. I haven't watched them for a full 16-hour day. But if they hunt grasshoppers all day at the rate they do when I am watching them, they're capable, combined, of killing 200 grasshoppers a day. That's why not mowing your lawn can be so important.

Cassin's Kingbird, and Plagiarism


I've never seen anything published about the Cassin's kingbird's mating ritual. Not to say such data doesn't exist, just that I've never seen it. One day a couple of years ago, I added few lines about the wedding dances I have observed, to the Cassin's Kingbird entry on Wikipedia. 

I forgot I made the entry, until I was looking for some information on this bird recently. I found some text that looked familiar, on someone's site. Then another site, the exact text. Another place, the same text with minor changes. Then on Wikipedia, I saw the original entry. I hit the History tag and saw that my login had made the entry.


I realized that two things had happened:

  1. People saw my entry and assumed it was gospel. The entry is true; Cassin's are one of my favorite birds and I was only reporting what I had observed. Even so, you know what they say happens when you assume something.
  2. People stole my entry and put it on their own site, as their own. Without even putting it in their own words!  I guess this is ok. I want people to know about this bird. But it would have been nice to have been given credit. That's one good thing about Wikipedia -- your work is perpetually credited, as long as you post it there first. (The downside is that Wikipedia requires references. My posting may disappear from there, so I put it at the bottom of this entry so that it can be referenced by Wikipedia.)
One thing I have learned, in my sojourn as "not an ornithologist, naturalist or biologist,"  is that information about specific bird species is very rare, unless they're a well-studies species, like Robins or Penguins. Most people don't spend enough time watching a specific species to pick up the details that really should be studied.

Mating rituals are a good (and fun) example.  Since I saw the Cassin's Kingbird pair dancing, I've noticed other mating rituals. Hummingbirds. Chickens. Even crows do it.  I think people, you especially, should devote a summer to taking pictures and making observations of a specific species. Take notes, and put your notes online. That helps the rest of us learn, and might benefit that species.

And if I borrow what you publish, I promise to attribute it properly.



Cassin's Kingbird Mating Ritual: In early spring, presumably after having chosen (or shown up with) their mate, they launch into a peculiar dance. With excited high-pitched calls, they hover in unison, wings outstretched, over a favorite perch. This dance takes place several times a day over several days, over several separate sites in an area covering two or three acres (12,000 m2). The sites chosen for the dance appear to be the same sites used as hunting perches during the spring and summer.

Monday, April 18, 2011

Canyon Towhee on the Woodpile

The Canyon Towhee is a faithful friend. Nothing notable in the looks department, but packed with personality.

This female and her hubby remain here all year around. They think they own my wife's truck, and pitch a fit whenever they think I'm going to get close to it. They don't mind me being around, so long as I stay more than 30' away. This picture was taken at about 25', but she flew off when I tried to get closer.



The picture: I used the Tv setting, at 1/400. I stepped down to ISO 100 and set the automatic meter to compensate down by 1 F-Stop. I think it makes colors look much richer. A 1/80 shutter speed still looks crappy, though.

Want my advice? Don't waste your money on an IS lens for shooting birds. You still have to shoot at a high speed to get good shots, and image stabilization doesn't matter at 1/400.

More on Shutter Speed

I've been experimenting with the Tv setting on my camera, and it seems that anything less than 1/400 is too slow at distance. I'm not sure what the problem is, but here are some sample pictures I took of a Western Scrub jay.

The first one was shot at 1/400, and the second at 1/320. F7.1 was used on both pictures.



It seems that my problem is slight over-exposure at the slower speed. Although the Rebel's auto setting gets perfect shots under near-perfect conditions such as these, it has some annoying features if the light isn't perfect. Sometimes the flash is used when I don't need or want it. And when the flash is used, shutter speed is reduced. The Tv setting obviously isn't perfect, either. I wish they would make it easy for us to program the exposure intelligence for ourselves...

I don't like things to be really complicated, and a 95% solution would be perfect for me. But I'll keep experimenting with shutter speeds until I'm satisfied.

Sunday, April 17, 2011

Putting DirecTV to Good Use

I live in the Southwest, and things may be different where you live. Then again, they may not. I believe the single most important thing you can do to attract birds is to provide them with a clean, reliable water source.

It doesn't have to cost a lot of money. You could buy a liner at Home Depot for $40-$100, dig a hole and make a pond that way. I actually purchased a liner recently, and hope to finally turn that big hole in my backyard into a pond. But for several years, my bird pond has been a large, 70s-era satellite dish. I use a 240 GPM pump for circulation, and attached a filter I made by stuffing some HVAC filter material into a V8 juice bottle. (A filter isn't necessary, though it improves water quality. The important thing is either a pump for circulation or frequent water changes.)

Today I created a bird bath that I think the robins are going to love. It's an old DirecTV dish. I removed the mounting bracket, set it on top of some bricks and used a rock to keep the hose in place.



You can see my pond (the 70's-era satellite dish) in the picture too. One dish on top of the other one. When I finish my "real" pond, I'm thinking I'll move into another spot in my yard and keep using it.

Since I added water to my yard 7-8 years ago, the number of birds I see has gone up at least 10-fold. In dry areas, the land's carrying capacity skyrockets when you add water.  It doesn't matter if birds can find plenty of food and shelter. Without water, you're not going to see many species. Even where there's a lot of water available in an area, much if it may be stagnant for a large part of the year. If birds find a source that tastes and smells clean, that's the source they're going to use. If they need to, birds will fly a few miles for water. Your backyard can see hundreds of regulars instead of just a few, depending on the water situation in your area.

A water source also provides the best place for birdwatching and photo opportunities.  Not all birds visit feeders, but all birds visit water.

Hummingbirds are Here!

Yesterday (4/16/11), I looked out the window just in time to see a hummingbird trying to drink something out of an empty feeder that has been hanging there since last fall.  I quickly grabbed it, cleaned it off, filled it with pastel-colored nectar and put it back. But the hummingbird never returned. I fear he moved on to a place nearby that had a full feeder.

I'll be ready when the next wave hits, though...

Saturday, April 16, 2011

Western Bluebird - Slow Speed Shutter Experimentation

I have an image-stabilization zoom lens from Canon that is supposed to give me perfect pictures at slow speeds. I took a bunch of pictures of this Western bluebird today at 1/60. I wasn't satisfied with most of them. I think the color is oversaturated at that speed, maybe a poor combination between the light, the zoom lens and the CCD sensor on my camera. But after making some color adjustments in Gimp, I did like this one:


Here's what you can expect at 1/60 when motion is involved (bad, bad, bad!):


I'm going to keep playing with shutter speeds. I think 1/100 is the slowest I'll go from now on.

One thing I have learned: My camera is a better photographer than I am. Whenever I use a creative setting, if the picture is important I try to follow up with full automatic just to be safe.

Friday, April 15, 2011

Cassin's Kingbird arrival in Albuquerque

Once again, looking forward to the arrival of new bird species. Today I was gratified to see two Cassin's kingbirds doing their marriage dance. It seems a little early for their arrival, but I think birds have been showing up a little earlier every year. (That's part of my reason for this blog -- I'm terrible at keeping records, and I can come back next year and look at bird arrival dates for comparison.)

It was at a distance and I didn't have my camera. If I had it, I would have taken a picture something like this picture I took on 5/14/06:


They probably won't show up at my home in the Manzanos until the end of April, though I am encouraged by their early arrival in Albuquerque.  When they get here, I promise to spend several hours shooting their mating displays.

So if you are in Albuquerque, now is the time to go locate a mating pair and get some good pictures for yourself. This weekend is the best time; by the end of next week they're probably going to be finished with their pageant and you'll have to wait a year for your next opportunity.  An open field with plenty of bugs (grasshoppers, flying moths, etc.) would be a likely spot. If there's a lone tree near the field and the area is fairly quiet, your success is practically guaranteed.

The ones I saw today were in an industrial parking lot on Kirtland AFB (near Hardin and Wyoming) though, so you can probably find them just about anywhere in Albuquerque. I once encountered a pair guarding a nest in a yucca 3' off the ground in a Fort Davis field (5/11/08):


All I had was my 2MP cell phone, but up until that point I believed they always made their nests over 20', so I thought it was worth taking the shot.

Sunday, April 10, 2011

Which is Better -- Starving, or Being Eaten?

When I first moved to Albuquerque in 1991, Columbidae Columba, the feral pigeon, was relatively rare throughout most of the city. It could be found downtown, but not anywhere else, as far as I can remember. Now the city is covered with these birds, and they have spread out to anywhere in the state with a fairly dense population of humans.


As you probably know, I consider them one of the three illegal aliens of the bird kingdom (the other two are House sparrows and European starlings). I don't even like them, and the picture above is the first picture I ever took of one. I took this picture two weeks ago.

Now Albuquerque wants to criminalize their feeding. I can understand why. Nobody likes bird poop, and pigeons leave a lot of it everywhere.

But there's a huge opportunity here! Other cities in recent years have seen a return of Peregrine falcons and Red-Tailed hawks. These birds have returned because the cities have everything they need -- skyscrapers and telephone poles to nest on, and pigeons to eat.  Pigeons have been living with humans for thousands of years. They're not going to go away on their own, and they eat garbage. We can't starve them out. But if the City of Albuquerque were to actively pursue ways to get hawks to come to the city, the pigeon population would drop to something manageable.

I've seen how hawks manage the Mourning dove population at my own house (having seen the cycle described below play out three times), and I'm sure they would manage pigeons the same way. A flock grows to 40 or 50 birds, and starts to feel safe in its territory. A hawk moves in, and over the course of a few months kills off about 90% of the flock.  Only the most vigilant birds survive. When it gets hard to catch food, the hawk moves on to the next flock. Bird behavior changes, too. Instead of being everywhere, they become more wary. Less likely to be caught out in the open where they can be killed by hawks. It's likely that pigeon eating and pooping patterns would change to something less annoying for those who don't much care for pigeons. As the hawk is off decimating other flocks, the flock already decimated begins to grow again. And the cycle starts over.

How many pigeons are there in Albuquerque-5000? If you starve 5,000 pigeons, you'll end up with 4,800 ravenous, annoying pigeons. But if hawks do the management work, the population should be reduced by 75-90%, depending on where you're standing when you do the count. The few left would be scattered out over the whole city in small flocks.

Unlike New York City, which had to intervene to successfully reintegrate Peregrine falcons, hawks live up to the very edge of Albuquerque and occasionally hunt in city limits already. So instead of punishing old men on park benches, why not just make Albuquerque bird friendly? There are things we can do to get hawks to move into the city. Replacing the use of harsh chlorine in city fountains with mechanical filtration systems would be a good action to take. Providing hawk-friendly habitat (especially downtown) would be another. If we put our mind to it, we could make Albuquerque look like heaven to a pair of young hawks trying to find a place to raise their chicks.

I used to believe that birds need pristine habitat to survive. But although pristine habitat is ideal, many bird species can coexist in the city with humans if they have what they need. If they have everything they need, they won't know that they're not in pristine habitat. All we have to do is make sure that the other needs of predatory birds are provided, and they will happily manage our pigeon flocks for us.

Their food is already here.

If there is a group of people in Albuquerque dedicated to making Albuquerque bird-friendly, please let me know about them. I'd like to join.