A BIRDY HALLOWEEN HAUNTING

On October 20th, Adam and I went north to the known crow roost at UW-Bothell (see last year’s report: http://abcbirding.com/harrowing-halloween-happening/). This is absolutely the best way get your haunted house fix, because this is REAL!

The Head Crow


It was every bit as frightening and exciting as last year, with the addition of rain this time! Didn’t stop the crows! And they didn’t come any earlier than expected, either. Since we got there early (an hour before sundown time of 6:11 PM), it seemed like nothing was happening, but as we despaired, they started flowing toward us. Just before sunset, the flow was huge, coming from the northwest, and we were surrounded. Upon arrival, they circled us, looking for a personal spot. The surrounding trees and pavement of the parking terrace were already covered. The noise was deafening and sinister and would make a good soundtrack for a horror film. Crows are technically songbirds, but this music was strictly from the percussion section of the band.

Crows had to share the limited number of branches

They somehow reminded me of Vaux’s Swifts coming in to roost, a little less organized, but arriving in a steady one-directional stream headed straight for us! Then groups of about a hundred each would swirl a bit, parting before us in clockwise and counterclockwise tribututaries before finding a tree or building to claim. Like the swifts, they didn’t seem to have a particular leader, but instead chased those they wanted to harass, which were many!

The venue at the parking terrace at UW-Bothell

The top of the parking garage where this was happening is surrounded on 2 sides by a wetland park, and the campus itself has many trees. But at that moment, the center of universe was right where we were standing. Rather than feeling like gods, though, we felt more like we were in the witch’s boiling cauldron. About 20 minutes after sundown when we were really starting to wonder what their plans were for us, everything abruptly stopped! Frozen in place, the crows just halted where they were and became silent and still. Darkness descended, but the crows who were on the parking pavement with us just stood there in the rain like statues. The surrounding trees all had crow-like ornaments on their branches, now faint black outlines in the drizzling night. This was at 6:35 PM, about 25 minutes past sunset. We realized there were at least 3 other carloads of onlookers as we left, so we’re not the only ones who appreciated the free show.

Diane under a mantle of crows (photo by Adam)
It’s dark now, but Adam is still besieged by rain drops and crow drops


We had to travel to Bothell to find this fantastic roost, but really we were glad we didn’t live in a roost. It’s just for Halloween for us.
Check out more of our photos and videos at: https://tinyurl.com/y2abyq6t

Avian Anatomy, Physiology and Other Adaptations

BIRD-SPECIFIC ANATOMY AND PHYSIOLOGY, presented to ABC by Ed Pullen on October 16, 2019

Ed Pullen regales the ABC’ers about Bird Anatomy on October 16, 2019

Ed, already an expert in anatomy and physiology has changed his focus from Homo sapiens to the classification Aves, which share only a backbone and warm blood with humans and other mammals.  The differences were summed up as, “It’s all about flying,” with a deep dive into feathers, how they evolved and possibly why, and the physics of flying. 

Ed uses a feather as a pointer to show the how-to of flight

A major difference between birds and other creatures is their lung action, a topic that includes inspiration, expiration, avian hemoglobin, air sacs including in hollow bones, and the myoglobin in the muscles that’s placed handy to the hemoglobin.  A video shown at the end, helped illustrate this interesting one-way respiration (see link below).  Ed gave the extreme example of Bar-headed Geese which migrate OVER the Himalayas, something that would kill anything else without their super-adaptation of basic bird oxygen usage. 

Ed started out his presentation talking about feathers, here holding up a Steller’s Jay feather with the structural coloration

Ed had bird factoids to illustrate every point, including the amazing story of how Penguins don’t get the bends. 

Eating got a lot of attention, including pregastric adaptations such as the crop, the gizzard, the extremely short small intestine, etc., which all assist with letting the bird eat fast, then digest elsewhere, for safety.

Other amazing aspects of birds’ anatomy included the amazing eyes, their large size, ability to see UV and perhaps magnetic fields.  Also covered were the amazing reproductive systems, allowing some species to actually raise chicks of the gender that are the most likely to survive under prevailing conditions.  Size of the yolk directly matches with altricial (small yolk) vs. precocial (large).

Ed got his points across to the Willettes (Diane, Carol, Faye, & Laurel)

Ed ended his presentation with an amazing set of videos that illustrated many of his  points, as well as entertained us!

ED’S LINKS FOR MORE INFORMATION AND ENTERTAINMENT:

birds amazing respiratory system video https://www.youtube.com/watch?v=kWMmyVu1ueY 

Club Winged Manakin making it’s mating song with its wings https://youtu.be/NQRzOqP9iNc 

Bower Bird display   https://www.youtube.com/watch?v=1XkPeN3AWIE   Skeletal Adaptations for Flight  https://www.youtube.com/watch?v=HMba0KByEPY

Bar-headed Geese Fly High  https://www.youtube.com/watch?v=3y9C2Sj-RbQ

Birds of the Mississippi River Delta https://www.youtube.com/watch?v=cjD_ElZDW3A

King-of-Saxony Bird-of-Paradise https://youtu.be/MdNyeasi0GI  King-of-Saxony Bird-of-Paradise

Brad Waggoner is the Guest on The Newest episode of The Bird Banter Podcast

We talk a lot about the Neah Bay Phenomenon, county birding and Brad’s birding family on the episode. Brad is funny, a really good guest on the show, and such a fund of information and knowledge about birding I wanted to spread the word here. Enjoy.

Find the episode on the Bird Banter Webside or on Apple Podcasts, Spotify or Stitcher.

Good Birding.

Ed