OCT-9 Gedalou Reservoir
There having been ebird reports of interesting migration activity in the last week, I decided that I would go out to Gedalou Reservoir later in the day and see if I could catch ducks and/or geese coming in late in the day after feeding in fields and ponds in the general area. Late afternoon would have the sun mostly behind me and low down. Also, I was hoping to figure out what the loudly calling unidentified bird was from the last trip.
Arrived at 3:00 and did a quick search of fish ponds and reeds, but both were empty or any activity. There were some
Mongolian Gull doing laps along the shoreline of the lake, so I moved up there and captured an interesting shot. This unfortunate has a badly deformed upper bill, but seemed to be healthy otherwise.
Several flocks of
Black-Headed Gull were resting on the water out towards the middle of the lake, but no ducks or geese to be seen. Large numbers of
Barn Swallow were lazily moving in a general southward direction high overhead, mostly only visible in the binoculars. Occasional
Great Crested Grebe were scattered along the shoreline and one group of five
Little Grebe were found.
Over a couple of hours I observed some interesting activity by
Oriental Magpie. They are very common around the lake, but I kept seeing large 'family' groups. I at first thought that it was one large family following me, which they often will do, but at one point I found an observation point from which I could see three groups of about 20 each spread out over about a half a kilometer and each group centered around their large nests. As is common for Magpie, by that late in the day they have found plenty to eat and are obviously in a playful mood. They were chasing each other, soaring up and down in pairs and generally raising a racket. That was unusually large numbers by itself, but the really interesting behavior came right at sunset. I was preparing to leave as the light was fading fast and had six large flocks of OM pass directly overhead, all headed for the same copse of trees about a half a kilometer to the south of me. With the binoculars I got an actual count of 155 Oriental Magpie passing over me in about 15 minutes time! I had a good open view and I am sure it was not the same birds circling around. I could see and occasionally hear, an immense amount of activity in the one small area that they had all vectored into. Figuring that this included the three groups I had seen earlier I endeavored to not double count.
I knew that they tend towards family flocks, but I had not heard of flocks gathering together to roost for the evening. Anybody else seen anything like this before?
Just at the last light,
Great Egret started appearing out of the gloom. They were all apparently migrating as they were headed south and slowly resolved into view as they descended from on high. From single birds to a flight of three, a flight of four and one of five birds. I counted 25 in total. I also spotted in the binoculars 13
Spot-Billed Duck coming in low from the west as I was following a group of GH settling down in a fish pond.
I did hear my mystery bird
loudly calling a
GRACK - GRACK - GRACK - GRACK call again, in three different locations. Still no joy on any idea what it was.
Gedalou Reservoir, Panjin, Dawa County, Liaoning, CN, Liaoning, CN
Oct 9, 2020 3:00 PM - 8:30 AM
Protocol: Traveling
3.0 kilometer(s)
9 species
Eastern Spot-billed Duck (Anas zonorhyncha) 13
Little Grebe (Tachybaptus ruficollis) 5
Great Crested Grebe (Podiceps cristatus) 12
Black-headed Gull (Chroicocephalus ridibundus) 75
Herring Gull (Mongolian) (Larus argentatus mongolicus) 20
Great Egret (Ardea alba) 25
Oriental Magpie (Pica serica) 155 Actual physical count: Clearly observed with binoculars; Individuals and flocks of 20+ passed directly over at twilight; all congregated in wooded area approx. 0.5 kilometers south of observer.
Barn Swallow (Hirundo rustica) 200
Light-vented Bulbul (Pycnonotus sinensis) 11
View this checklist online at
https://ebird.org/checklist/S74593801