Favoritos de csonafrank

Began calling around 4 am in an area with cottonwood trees. I tried to go out and find the source of the sound and whatever made it moved quickly towards other nearby trees, making me think some sort of bird is the source. Recorded during overnight field research trip. Area locked and inaccessible to general public. Site visited with permission and appropriate permits.

Though it's a completely different color flower than the last observation of this species, it keys out the same! Apparently this species can have either yellow or magenta. Surprising! (And as always, I welcome corrections, if I've made an error in either observation.)

An airy, delicate, upright plant, often in large colonies. The leaves are whorled and linear. The small white to cream and pale green flowers are the typically complex milkweed-shape in umbels. Pollinators love this plant including monarchs for which this is a host.