Published November 12th, 2009 at 1:50 am in fauna, kids and nature, photo, tracks and sign with no comments
Tagged with Food Cache, Hillcrest Drive, Red Squirrel, tracks and sign, Tsuga heterophylla
On a small island of trees at the bottom of the street we live on, there’s been a squirrel that Connor and Rowan have been paying some attention to. Though I am unsure of their reasoning, they have taken to calling it Hola, and most times we walk by, one of them will point him out. (I am not convinced it’s a male squirrel, but I’ll go with their thinking regarding its gender until there’s evidence otherwise.)
The other day we were walking past the island and I noticed a lot of little hemlock branches on the ground. Upon pausing to consider how they came to be there, another one dropped a short distance from me. I looked up and saw Hola working at trimming the ends of branches. All the trimmed branches had cones on them, a fact which I hadn’t really noticed before.
Connor and Rowan seemed to be unsurprised by this behavior, and proceeded to show me a hole where Hola would go at times. Connor believed this hole to be Hola’s home, and he showed me where he had made an effort to help Hola with his work by putting branches at the entrance.
The next day Connor and Rowan were playing down on the island and I asked them about Hola’s activities while I waited for someone to stop by with a delivery. They told me that Hola had been gathering the trimmed branches and piling them at the bases of several trees. I guess that would make them more convenient for grabbing and eating from a favored branch, but the issue of convenience brings up the question of why he’s trimming the branches in the first place. He could just grab the cones from the branches as he wants.
I can think of a couple of reasons Hola harvests the cones in the way he does. The branches ends where the cones are located are quite flexible, and it seems unlikely that he would be able to hold on and eat while out there. That would require a trip to the end to grab a cone, followed by a retreat back to a steady location for eating. This seems like an inefficient process for getting food. Another reason might be that the cones will continue to mature if they remain on the tree. Sometime this winter when conditions are right, they will open up and release their seeds to the wind. Once trimmed, it seems the cones are much more likely to remain closed, leaving the seeds available for Hola to eat. One thing I wonder about though is the quantity of cones harvested. So far it does not look like very many cones have been collected. I would think only enough to last a few weeks, but not the whole winter. Perhaps some are being moved to locations where they are not so visible. I will try to pay attention over the coming weeks and months to see whether Hola continues to harvest and use cones in this way.
Published October 31st, 2008 at 10:35 am in Recording, fauna with no comments
Tagged with Red Squirrel, River Otter, Window Recording
There was an Owl calling last night around 12:45 and River Otters chirping around 3 and 5am. This morning there was an interesting intro to Red Squirrel chatter that I’ve included a clip of.
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River Otter and Mystery Calls: More of the River Otter and Mystery Calls. In this clip, there is an otter chirping, then the mystery (possibly gull?) call comes in with the otter. It sounds to me like the second type of call is from an animal that’s moving around faster than I would expect an otter to (which would incline me to think it’s a bird), but I am uncertain how well I can actually interpret the spatial cues in these recordings.
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Red Squirrel: The rapid call at the beginning of this clip was something I don’t remember hearing before.
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Published October 20th, 2008 at 12:41 pm in Recording, birds with no comments
Tagged with Red Squirrel, Varied Thrush, Window Recording
A quiet night, I did not catch much other than dogs barking. All the clips today are from after sunrise this morning.
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Red Squirrel: Recorded at 07:41. Download Red Squirrel
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Varied Thrush: Both ‘songs’ and their contact calls (sound like ‘chup’) can be here. I think the singing birds might be hatch year individuals, as they sound somewhat tentative. Recorded at 07:42. Download Varied Thrush
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Varied Thrush: What I take to be a single bird practicing his(?) singing. Recorded at 07:46. Download Varied Thrush
Published October 18th, 2008 at 9:00 pm in Recording, birds with no comments
Tagged with Pine Siskin, Red Squirrel, Varied Thrush, Window Recording, Winter Wren
Another quiet night. I did pick up Pine Siskins this morning. They’re a common species most years, but they haven’t been around the neighborhood too much lately. This was the first time I heard them on one of these recordings.
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Red Squirrel: I am not sure what, if anything, this type of vocalization means coming from a Red Squirrel. They can (and this one did, though I cut the clip short) go on for several minutes chattering away like this. Download Red Squirrel
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Pine Siskins: One of the fairly distinctive elements to Pine Siskin vocalization is the zipper call. That call can be heard a couple of times in this clip. Download Pine Siskins
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Mystery Calls: I am pretty sure these are from a Varied Thrush, but it’s not their typical sound.Download Mystery Calls
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Winter Wren Singing: Although they are not singing as frequently or powerfully, the Winter Wrens are still occasionally belting out a stanza or two of song. I am not sure when/if the Winter Wrens stop singing completely for the winter.Download Winter Wren Singing