donendicott 的鑑定
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什麼
蝙蝠總科 (總科 Vespertilionoidea)觀察者
jim_carretta描述
The freeway overpass has holes, which presumably are homes for bats. Massive amount of scat directly below those holes whose perimeters are darkened by the comings and goings of bats. In contrast, no scat below the 'clean' holes, as shown in last photo. @donendicott
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什麼
荒漠棉尾兔 (Sylvilagus audubonii)觀察者
jim_carretta描述
It was the only track of this morphology found in the area. Dirt trail through thick chaparral. Not what I consider classic jackrabbit habitat, but the morphology and size seems consistent. Added a distribution map from Tremor et al. 2017 (SD County Mammal Atlas).
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觀察者
jim_carretta描述
Transfer tracks left on a metal door on the ground at an abandoned research station. The amount of negative space in the track is impressive.
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觀察者
jimjohnson描述
Roosting in a covered walkway. The third shot offers a sense of scale. The blocks are 8 to 9 inches square.
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什麼
美洲獅 (Puma concolor)觀察者
jim_carretta描述
Added on 12/9/2018: photos of scat that were next to the series of lion tracks. I'd walked past several tracks and found the scat first. Scat had a large 3/4 inch diameter vertebra inside.
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什麼
紅菱紋響尾蛇 (Crotalus ruber)觀察者
patsimpson2000描述
About 6 ft, BIG guy. Would not budge from the trail for quite a long time. Finally went to side of trail and coiled up but did not want to move from there.
統計
- 47 IDs made for others
