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Showing posts with label fecal sacs. Show all posts
Showing posts with label fecal sacs. Show all posts

Great Crested Flycatchers!

Tuesday, July 5, 2011

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And that pewee-lookin' bird with yellow below that Phoebe found for me? Get this: Pewees have wingbars and crested heads. She had it almost zeroed in. But she had found a pair of great-crested flycatchers, and they were tending a nest!


And not just any nest, but a glorious weathered branch stub in a sycamore. And it was low, and the birds were tame, as you will see. What a find!


 The pair was busy feeding young which might have been fairly well along, to judge from the prey items they were getting. I could hear them in the cavity, voicing "wheep!" calls just like their parents'. This is something unique about flycatchers. Even as little chicks, their voices don't vary much from how their parents sound. Flycatcher calls and songs are innate, not learned. So you could take a phoebe, a pewee or a great-crested flycatcher, just to name a few, raise them in complete isolation, and they'd still have a perfect song and call from the get-go. That's not true of most songbirds.  You could have knocked me over with a feather the first time I held a newly-hatched phoebe in my palm, and it said, "Chip!" just like an adult phoebe.

So this pair of great-crests is hauling in dragonflies as fast as they can. Not the first time I've wished I'd spent more time on odonates. It pains the Science Chimp greatly not to be able to identify the great crested's prey items. Please chip in if you can.

 The birds were bombproof, eyeing me but slowing down not one whit as I fired away from just below the nest.


Input, output...they carried away sizable fecal sacs of processed dragonfly with each visit.


 The original disposable diaper: the fecal sac.

 Fecal sacs are neatly encased in a mucoid coating which, if handled gently, leaves no residue on bill (or fingers, she notes).
 The bird carries them away for hygienic purposes, and to keep predators from keying in on the nest location. Birds love to drop them over water.



More great-crested family photos anon.


Wren Daily LIfe

Monday, July 6, 2009

17 comments
Sick Computer Update: The nice Fed-ex man came and picked up my computer with its Black Curtain of Doom and its melted cord to ship them off to Apple, and let them become Apple's problem. The Apple Care Protection Plan should be mandatory. Three years of free service. Well, not exactly free, because the plan is expensive, but not as expensive as a new logic board and video card. Get the Plan. If you put your laptop through what I do, you're going to need it. The nice man gave Bacon four bikkits. Dog etiquette has not progressed as far as child etiquette. He didn't ask if it was OK to load Baker up with carbs; he just did it. Four big Milk Bones is pretty much a day's ration for a 24-lb. doggeh. I was so happy to see that laptop drive away I didn't chide him.

Input: daddy longlegs. Output: copious fecal sacs. I love the awkward leg position Mr. Wren assumes in order to dive in and get a fecal sac as it's being produced.


Away with it!


Songbirds remove the neat, membrane enclosed fecal sacs and fly a good distance from the nest before dropping them. Grackles like to drop them over water, and since grackles generally nest near water, that usually means a pond or stream. When there's no pond or stream, grackles will cheerfully fill up your bird bath with them. Instinct is a funny thing.

My bluebirds like to put their babies' fecal sacs on our phone wire, or on our heron weathervane, or to line them up neatly on the railing at the top of our tower. Oh, thank you.

As the wren nestlings got bigger, so did the food items the parents brought. There are very few insects that can evoke a physical shudder from me, but they are: daddy longlegs, cockroaches, and camel crickets. I think that's because all three of those tend to be in basements, and when I was a kid I have memories of cold, clammy camel crickets leaping everywhere and occasionally bouncing off my bare legs as I walked through our basement in Virginia. Ecch.

I don't know where they were getting them, but the wrens brought in camel crickets by the dozen.


There were a couple of reliable perches each wren would fetch up on while pausing to see that the coast was clear near the nest. Usually, it was the bail of a hanging basket.


Which offered nice color opportunities. This is a little variegated ivy geranium that might be called Sugar Baby Red. Teeny tiny leaves edged in cream, dark salmon flowers, and I've had it for years and years, ever since I pinched a cutting off a huge hanging basket at a garden center because I didn't want to spend $30 for one somebody else had had the fun of growing. Plant propagation and cutting theft: It's one of my only vices.
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