Barred owl

barred owl

Yesterday afternoon, I managed to get this one, blurry photo of a barred owl down in the hollow before it flew. It was first spotted by Steve this past Saturday, and has been seen a couple times since, always within a few hundred feet of the halfway point between the Juniata River and the end of the driveway at the houses. Perhaps not coincidentally, this is also where the lower hollow, with its steep stream banks and hemlocks, gives way to the more open and deciduous upper hollow.

Barred owls are uncommon visitors here on the mountain. The last one we know about appeared on the 2006 Christmas Bird Count, also down in the hollow, though a little higher above the road. This relative scarcity may be due to the fact that we have so few hemlocks. If so, we may see even fewer barred owls in the future: the hemlock woolly adelgid damage is now conspicuous on many of our trees.

–Dave

American chestnut on Brush Mountain bears nuts

American chestnut burrThis past May, we discovered unmistakeable evidence that one of the American chestnut trees on top of Laurel Ridge had borne a crop of nuts the previous autumn. Husks littered the ground around the tree for many feet in all directions.

The tree was about fifteeen feet off the trail, and some 40 feet tall. It seemed to be still in good health, with no large lesions from the blight, but when I checked again this afternoon, its leaves were all brown — except for the four-foot-high sprouts at its base.

Read more in my post at Via Negativa.

Giant swallowtail

Giant swallowtail

Yesterday afternoon around 5:30, a very tattered giant swallowtail (Papilio cresphontes) appeared on the butterfly bush in my front garden. This was a new record for the mountain. We watched it nectaring for about ten minutes before it flew away.

The larvae feed on members of the citrus family, so this butterfly’s tattered appearance is understandable. I found the following on eNature:

Known as the “Orange Dog” by citrus growers, the Giant Swallowtail is sometimes considered a citrus pest and is subjected to massive spraying. It is capable of flying long distances and often strays into northern and midwestern districts.

My photos of the butterfly are here. See also my lepidoptera set on Flickr.

–Dave

Encounter with a porcupine

I surprised a porcupine on the ground up in the spruce grove this morning. It was walking along making little grunting noises when I interrrupted. Uncharacteristically, after showing me its backside, it then turned to face me and approached to with two feet of me, clicking its teeth. As it waddled away, it resumed grunting — this is faintly audible in the video.

–Dave

Beetles and Plummers

We’ve just added a couple of nifty new pages here, plus a photo gallery offsite at Flickr. Go to the History section to find links to a page of historical photos, including one of William and Catharine Plummer, the original settlers for whom the hollow was named. Also linked there is a gallery of charming photos from 1919, which we’ve placed at Flickr to take advantage of that site’s superior photo gallery and slideshow applications.

New to the Nature section is an inventory of the beetles of our end of Brush Mountain – the first of many such biological inventories we plan to feature on the site. It may seem like a strange place to start, but as Steve points out, “The Coleoptera of Brush Mountain probably represent the single largest class of living thing on the property, as they do worldwide.”

Counting Birds

The last of our breeding birds, wood pewee and indigo bunting, returned to the mountain just in time for International Migratory Bird Day on May 12. Most of the counting this year was done by Marcia, as she recounts on her blog, with help from some of our hunter friends, who were on the mountain very early in pursuit of spring gobblers. A one-day count may not fully capture the species richness here — we know we missed the nesting sharp-shinned hawks, for example — but it gives a pretty good idea of the birds’ relative abundance. The commonest birds on the mountain appear to be red-eyed vireo (20), scarlet tanager (17), eastern towhee (15), ovenbird (13), black-throated green warbler (13), and wood thrush (11). These numbers represent, if anything, an increase from past years, and lend credence to the claims of ornithologists that threatened birds such as scarlet tanagers and wood thrushes would do fine if given sufficient unfragmented forest habitat. Marcia also logged a golden-winged warbler at the edge of Sapsucker Ridge, a species in precipitous decline due to a lack of shrubland habitat and to competition and hybridization with the closely related blue-winged warbler, whose range is expanding northward, possibly as a consequence of global warming.

1. mallard–1
2. ruffed grouse–5
3. wild turkey–7
4. great blue heron–1
5. turkey vulture–3
6. red-tailed hawk–1
7. killdeer–1
8. mourning dove–3
9. yellow-billed cuckoo–8
10. whip-poor-will–2
11. ruby-throated hummingbird–1
12. red-bellied woodpecker–1
13. downy woodpecker–1
14. northern flicker–2
15. pileated woodpecker–2
16. eastern wood-pewee–4
17. Acadian flycatcher–4
18. eastern phoebe–2
19. great-crested flycatcher–6
20. blue-headed vireo–4
21. red-eyed vireo–20
22. blue jay–8
23. American crow–4
24. common raven–1
25. black-capped chickadee–4
26. tufted titmouse–6
27. white-breasted nuthatch–1
28. blue-gray gnatcatcher–2
29. wood thrush–11
30. American robin–2
31. gray catbird–2
32. golden-winged warbler–1
33. black-throated blue warbler–2
34. yellow-rumped warbler–2
35. black-throated green warbler–13
36. blackburnian warbler–1
37. bay-breasted warbler–1
38. black-and-white warbler–9
39. American redstart–8
40. worm-eating warbler–8
41. ovenbird–13
42. Louisiana waterthrush–1
43. common yellowthroat–7
44. hooded warbler–5
45. scarlet tanager–17
46. eastern towhee–15
47. chipping sparrow–3
48. field sparrow–4
49. song sparrow–3
50. northern cardinal–4
51. rose-breasted grosbeak–7
52. indigo bunting–6
53. common grackle–4
54. brown-headed cowbird–5
55. Baltimore oriole–2
56. American goldfinch–5