Showing posts with label Rare bird news. Show all posts
Showing posts with label Rare bird news. Show all posts

Tuesday, December 23, 2008

A Surprising Miss!

(Saturday was the Bigfork CBC, but not much to blog about)

Sunday, the 21st, Pete Smith and I decided we would engage in some twitching. For nonbirders, that sounds just plain retarded, but it really means to drive a good distance to see one or two rare birds.

A week earlier, a PINE WARBLER was reported in Eureka, MT. A sleepy little town closer to the Canada border then to other humans. The Pine Warbler stayed for a week, and was seen every signal day, so we were already 99% sure we would see the bird. Arriving at Lewis's house, there isn't much feeder activity, but it soon picks up. Lewis brings up the fact that they had found a DUNLIN five minutes from there the day earlier. Not wanting to miss another state bird, we head off to find this geographically and meteorologicaly challenged Dunlin. That wasn't a hard twitch. The bird was right where it should have been. We got very good views!



Having our fill of Dunlin, we go back to Lewis's house and resume feeder watching for a rarity. After SEVERAL more hours, the sun sack too low to see anything, and we had to leave, warblerless.

Oh well, at least we sw a Dunlin.

Saturday, November 22, 2008

Sungrebe and other rare birds

What a find! First for the ABA region, a female Sungrebe showed up in New Mexico. The bird was photographed on the 13th of November, and correctly Identified the 17th then refound the 18th. What a beautiful bird. Beautiful on behalf of its colors, and because of its shear rarity in the ABA area. See photos here.

Also a Lucy's Warbler in Fort McMurray, northern Alberta. The bird stayed from november 8-10. What a wacky spot for a arrid country warbler to be. Makes you wonder how many rare birds are we missing.

My theory is that it depends on several factors.
- Area of appropriate habitat
- Number of birders visiting that area
- Number of birders that know what they are looking at
- Densitiy of birders
- Hourly coverage of the appropriate habitat

So with all that, and more, in a estimantaly equation, we can kind of guess the number of birds we miss. It is all very complicated, but there are some basic rules. The more heavily birded the habitat is, the more rarities are found, and vica versa. So take Monterey Bay pelagic trips. Very active, good habitat, and lots of coverage, and they see some rare birds. More then you would if you visited a dock and scanned the ocean once a week.

To answer the question, this year the ABA has had 3 new birds. I think 10% or less of rare birds are ever found. so that makes about about 30 potential brand new birds for the ABA that were missed. Lets add about 2 to the missed column in honor of Attu Island. After its tours were closed, we miss much more birds.

So, the moral of the story is, get out there and look.