Category Archives: Shiga

Egret Rookery

Great egrets (ダイサギ), cattle egrets (アマサギ), and other birds nest in the woods at Hyozu Shrine (兵主大社) in Yasu City, Shiga Prefecture, Japan. I recorded the sounds of the rookery on Sunday, May 27, 2018, and posted a six-minute sample on radio aporee ::: maps and SoundCloud.

The woods are between a large shrine and Yasu City athletic facilities (野洲市中主B&G海洋センター). The white spots in the satellite image of the woods are egrets.

The recording location was not very photogenic. White bird droppings covered everything in the area. On the ground near the tree that held my recorder broken eggshells and a feather indicated young egrets above.

Eggshell below a great egret nest

Eggshell below a great egret nest beside Hyozu Taisha (兵主大社) in Gojo, Yasu City

Short feather below a great egret nest

Short feather below a great egret nest beside Hyozu Taisha (兵主大社) in Gojo, Yasu City

Nests and young birds were hidden in the treetops.

Egret nests and young great egrets (ダオサギ)

Egret nests and young great egrets (ダオサギ) in the woods beside Hyozu Taisha (兵主大社) in Gojo, Yasu City

Now and then an adult egret appeared, and I was lucky to see a cattle egret carrying a branch for a nest.

Cattle egret (Bubulcus ibis, アマサギ)

Cattle egret (Bubulcus ibis, アマサギ) in the woods beside Hyozu Taisha (兵主大社) in Gojo, Yasu City

Recording and post-processing

This recording was made with a Sony PCM-M10 recorder and FEL Communications Clippy Stereo EM172 Microphone tied to a tree. Since I was near the south edge of the woods, I placed the mics placed slightly forward of center facing north.

Audio post-processing was done with Audacity on Fedora Workstation, a Linux system running on a Lenovo ThinkStation 20 computer. I trimmed this excerpt from a longer recording and raised the overall volume. No other digital signal processing was done.

Crows along Yasugawa

On Sunday, March 18, 2018, I was cycling down the north bank of Yasugawa when I heard some noisy crows perched in nearby trees.

When I ride my touring bike, I carry a small audio recorder and microphones. For this recording I used a Sony PCM-M10 recorder and Clippy Stereo EM172 mics by FEL Communications Ltd. To mimic human hearing, a quasi-binaural sound image was made by placing the mics on either side of my bicycle handlebar bag. I prefer to use trees about the diameter of an adult human head, but I use the handlebar bag when I cannot find a tree.

Trek 520 touring bike with audio recorder and mics on handlebar bag in Yasu City

The Compass app on my iPhone shows the location, direction, and time.

Compass and geolocation app on bicycle handlebar bag in Yasu City

As we can see on the map, this location is between a river and near the edge of a suburban area. With aircraft overhead, vehicles on nearby roads, and rural and suburban human activities, this place is quite noisy, even on Sunday.

In everyday life we filter out much of the noise. When the crows are not so noisy, I suppose most people experience this environment as a peaceful and quiet little park, just as it appears in photographs.

Trek 520 touring bike in Yasu City

Trek 520 touring bike in Yasu City

One Day in December

On December 30, 2017, I rode my mountain bike downstream along Yasugawa (野洲川) to Moriyama City (守山市). From the riverbank I rode to Hatonomori Park (鳩の森公園). I shot a few video clips and still photographs of birds that I saw.

Photos

Most cormorants (カワウ), great egrets (ダイサギ), and grey herons (アオサギ) fly south in late fall. I was pleased to see a few at the river in winter.

Great cormorants (カワウ) and great egrets (ダイサギ)

Great cormorants (カワウ) and great egrets (ダイサギ)

Great cormorants (カワウ) and grey heron (アオサギ)

Great cormorants (カワウ) and grey heron (アオサギ)

Great cormorants (カワウ) and grey heron (アオサギ)

Great cormorants (カワウ) and grey heron (アオサギ)

Meadow buntings (ホオジロ) were active along the riverbank, but most were hiding in bushes.

Meadow bunting (ホオジロ)

Meadow bunting (ホオジロ)

I often see Oriental turtle doves at Hatonomori Park in Moriyama City (滋賀県 守山市 鳩の森公園), but usually they avoid people. This one at the park entrance did not seen to mind my presence as long as I remained still.

Oriental Turtle-Dove (キジバト)

Oriental turtle-dove (キジバト)

Oriental Turtle-Dove (キジバト)

Oriental Turtle-Dove (Streptopelia orientalis, キジバト) at

Usually I see olive-backed pipits (ビンズイ) in groups, but this one was wandering around the park alone.

Olive-backed pipit (ビンズイ)

Olive-backed pipit (ビンズイ)

Olive-backed pipit (ビンズイ)

Olive-backed pipit (ビンズイ)

Daurian redstarts (ジョウビタキ) are welcome visitors in winter. Males often pose where they can be seen.

Daurian redstart male (ジョウビタキ)

Daurian redstart male (Phoenicurus auroreus, ジョウビタキ)

Daurian redstart male (ジョウビタキ)

Daurian redstart male (Phoenicurus auroreus, ジョウビタキ)

Notes

Video and photos were shot hand-held with an Olympus OM-D E-M1 Mark II camera and a 40-150mm F2.8 PRO lens.

Music: “Lexicon” by Jason Shaw at AudionautiX.com, licensed under a Creative Commons Attribution 3.0 Unported License.

Video was edited with Kdenlive on a Fedora GNU/Linux workstation.

This video is also available on YouTube.

November photos

In November, 2017, I took several thousand photographs in Shiga Prefecture, Japan. I uploaded several hundred of them to my Flickr Photostream. A few of the better ones are among my photos on 500px.

This selection of November photos is in reverse chronological order without any attempt to group them by subject.

To see my photos more often, please follow me on Twitter or see my Flickr Photostream.

Egrets in September

September at Yasugawa (野洲川) begins gently as the hot, lazy days of summer continue. Great egrets and grey herons stand patiently in and along the river.

Great egret (ダイサギ)

Great egret (ダイサギ) at Yasugawa in Moriyama

Grey heron and great egret (アオサギとダイサギ)

Grey heron and great egret (アオサギとダイサギ) at Yasugawa below the Shinkansen tracks

As the river rises in early September, we see fewer egrets at popular summer locations such under the Shinkansen (新幹線) bridge.

Shinkansen (新幹線)

Shinkansen (新幹線) crossing Yasugawa (野洲川)

Many egrets gather at the dam between Yasu City and Moriyama City.

Great egret (ダイサギ)

Great egret (ダイサギ) at Yasugawa below the dam in Moriyama City

Some pursue fish in the river below the dam.

Great egret (ダイサギ)

Great egret (ダイサギ) at Yasugawa below the dam in Moriyama City

Great egret (ダイサギ)

Great egret (ダイサギ) at Yasugawa below the dam in Moriyama City

Great egret (ダイサギ)

Great egret (ダイサギ) at Yasugawa below the dam in Moriyama City

Some perch on the dam and hunt for small aquatic animals.

Great egret (ダイサギ)

Great egret (ダイサギ) at Yasugawa above the dam in Moriyama City

Great egret (ダイサギ) and little egret (コサギ)

Great egret (ダイサギ) and little egret (コサギ) at Yasugawa on the dam in Moriyama City

Great egret (ダイサギ)

Great egret (ダイサギ) at Yasugawa on the dam in Moriyama City

Great egret (ダイサギ) and little egret (コサギ)

Great egret (ダイサギ) and little egret (コサギ) at Yasugawa on the dam in Moriyama City

Some hunt in nearby fields, eating grasshoppers and other insects. Sometimes they find larger prey.

Great egret (ダイサギ)

Great egret (ダイサギ) with a large frog in Tsuji, Ritto City

Fall weather begins in early October. Many birds begin to migrate to warmer locations, while some egrets and herons remain at Yasugawa.

Little egret (コサギ)

Little egret (コサギ) at Yasugawa below the dam in Moriyama City

Grey heron (アオサギ)

Grey heron (アオサギ) at Yasugawa on the dam in Moriyama City

Grey heron (アオサギ)

Grey heron (アオサギ) at Yasugawa on the dam in Moriyama City

Little egret (コサギ)

Little egret (コサギ) at Yasugawa below the dam in Moriyama City