Hiked trails at
Saguaro National Park (east) outside of Tucson, in the '
bajadas' of the Rincon Mountains, among the many types of cactus in addition to saguaros. (Go to the NPS website for neat photos of the flora and fauna of the park.)
Birds: hawk (possibly a young red-tailed), cactus wren, gila woodpecker, and phainopepla, which looks like a black cardinal with a fluffy crest. I looked, but did not see any roadrunners. :-( No snakes, either.
Learned that there used to be a lot more saguaros here before the 1930s when there was a hard freeze that killed many of them. There was another hard freeze in the '60s, and scientists have determined that a freeze lasting longer than 20 hours (or thereabouts) can cause damage to young, old, or infirm saguaros. We saw a number of them with drooping arms, and a few remnants of dead 'trees,' some of which have a scarecrow-y type look. There was an article in today's local paper about the recent freezing weather possibly affecting some saguaros. And they do a census every 10 years!
The interior structure is amazing, with a woody framework surrounding an absorbent core and covered by the accordion shaped flesh that can expand and contract depending on water levels. (
learn more)
Way cool. And actually, it was a lovely day to hike in the desert, sunny but temps in the low 60s so comfortable in long sleeves (good to keep the sun off too).
I forgot and left my FR on one-second recording...