In May-June I was in California and Arizona. It was a great trip, we saw about 65 species of mammals with Black-footed ferret, Island fox, Bobcat, … (report is coming in the next weeks). However, I am still struggling with the ID of some animals, mainly chipmunks and kangaroo rats. I have pictures of most of them, and decided to split this up in 2 parts, one with the sciurids, and a second with mainly mice and rats. Thanks in advance for helping me out with these!
In Yosemite, I saw many chipmunks, which were mainly Lodgepoles, but I also saw Long-eared (Merced Grove), Shadow (Merced Grove) and Alpine (Tioga ). I found that id’ing Lodgepole and Long-eared was quite difficult…
1. Chipmunk, seen near the Toga Pass entrance. I saw an Alpine chipmunk there too, but I think the one on the photo is a Lodgepole?
2. Another chipmunk from Yosemite, this one was seen along the Tioga Road near Lembert Dome. Another Lodgepole?
3. Chipmunk, Tuolumne Grove. This one seems to have quite some white behind the ears, so Long-eared?
4. Another from the same location, also Long-eared?
5. One from Merced Grove, from where Long-eared is often reported.
6. A squirrel from Mojave National Preserve. Rock squirrel? (I saw many squirrels of this species in Arizona, but this one seems to be different).
7. Another Rock squirrel from Mojave?
8. A chipmunk from the South Rim of the Grand Canyon. Cliff was abundant here, this one looks not as grey as the Cliffs. Could this be Uinta?
9. Another one from the Grand Canyon, this one liked to climb in trees.
10. A crappy picture from a chipmunk I saw at Ten-X Campground, a few miles south of Grand Canyon. Is this a Cliff chipmunk (although the habitat was pine forest without any rocks or cliffs nearby), or Uinta (or impossible to say from this picture :-))?
11. I saw this squirrel at the same campsite, is this an Abert’s without eartufts?
12. Some bats to finish, I don’t expect these can be identified, but since I have pictures I give it a try. This one was seen near Potwisha Campground in Sequoia, they emerged well before it was dark and were pretty small – Canyon bat? Another slightly lighter and larger species was flying around at the same time here too (maybe a California myotis?)
13. Another bat, this time from Joshua Tree. This one was larger than the other bats (which I think were Canyon bats) flying around.
14. Finally, one without photo. At Tamarack Flat Campground in Yosemite I heard several bats flying around after dark, on my bat detector I could hear them best on 20 kHz.
Thanks again for any help!