I know the chirp in the foreground is a cardinal. I’m more curious about the lilting song in the background.

Live Oak Lichen

Microbial Diversity Lab #10 Protist #2

Prairie trail in Huntsville TX

Found this in my husband’s shoe - some type of caterpillar. The underside has black stripes and a reddish purple color too.

1-Moss, LLELA, subrate is soil, black jack trail, running creek, about 4ft deep, on 1ft up bank,

Red Oak, Leaf litter, sea oats, cottonwood, groundswell, green briar,

3, soil. Base of tree, LLELA, possible,fissdens, shady,

4, on dead tree trunk, near shelf fungus, Leaf litter,

8, 2FT UP TREE, ON BARK,

I saw this in a rosemary plant in college. Not sure what it is

Please identify

Tree