September 7-13, 2025

Easing out of summer

vesper sparrow
Vesper sparrow watching a wasp. Photo by David Lukas

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This will be a short and simple newsletter today, and I'll be closing out the summer by taking the next week off, but I'm looking forward to seeing what autumn has in store for us when the newsletter returns.

It's been another crazy and mixed week with bits of rain, sun, and hazy smoke.

smoky sunset
One of this week's smoky sunsets. Photo by David Lukas

smoky sunset
And another smoky evening. Photo by David Lukas

But these changing conditions don't seem to have impacted the migrating birds. Many groups of yellow-rumped warblers have been moving through, along with swallows, groups of sparrows, and a scattering of western tanagers.

western tanager
Female western tanager eating black hawthorn. Photo by David Lukas

yellow-rumped warbler
Female yellow-rumped warbler with a migrating flock. Photo by David Lukas

accipiter
Juvenile accipiters are among our most common migrating raptors. Photo by David LUkas

common mergansers
Some common mergansers may stay in the valley until winter sets in. Photo by David Lukas

A handful of deciduous trees are beginning to change colors, while lingering seeds and berries continue to provide a bounty for the migrating birds.

aspens
Early colors on aspens. Photo by David Lukas

chokecherry
Ripe chokecherries. Photo by David Lukas

Columbia hawthorn
Columbia hawthorn berries are red, unlike the dark purple berries of black hawthorn (in the tanager photo above). Photo by David Lukas

Given how dry and brittle everything is, it's been a pleasure to see how many different kinds of insects there are. Dragonflies and grasshoppers are still the most obvious insects, but they're not the only ones.

darner
Darners have been the most common dragonflies for weeks now. Photo by David Lukas

dragonfly
But once you start looking closely, you can find many other kinds of dragonflies. Photo by David Lukas

grasshopper
We get so used to seeing the same kinds of grasshoppers over and over again that seeing one that looks different is a surprise. Photo by David Lukas

praying mantis
Praying mantises are more visible in late summer when they reach their maximum size. Photo by David Lukas

robber fly
This bizarre little insect is one of our many robber flies. Photo by David Lukas

It's also time for dandelion flowers. Over the years, I've noticed that dandelions have two flowering periods, one in the early spring and one in the late summer. Both times, they are incredibly important to pollinators because they flower when there are few other flowers around. I used to pull dandelions from the yard, but as soon as I realized how many insects were using them I now leave them and am thankful for their presence!

hover flies
These colorful little hover flies seem to be one of the most common dandelion pollinators. Photo by David Lukas

fly
These larger flies are also in the mix. Photo by David Lukas

wasp
As well as these huge, astonishing wasps. Photo by David Lukas

In short, this has been an amazing spring (!) and summer, and I'm looking forward to the colors of autumn now!