2025-05-26

2025-05 25+26: Late May Birding on Mara Island

An overnight visit to Mara-do in late May always seems to be one of the more interesting birding experiences on the island. Spring migration has basically simmered down to a near end, with a lot of the diversity drastically dropping. However, there's a group of birds that show up late May that are very difficult to see, but make a late spring trip to any island worthwhile: the grasshopper warblers. Last year, I found a Baikal Bush Warbler, quite rare this far south in Korea during migration, and one of my birding highlights on Mara. So of course I wanted another try for one of these skulkers.

When I arrived the winds picked up, which ended up cancelling the boats later in the day. This ended up being fantastic for birding, as usually the island is crawling with tourists during the daytime, but now it felt like I had it all to myself aside form the locals. This lack of disturbance paid off as I was able to find my first Middendor's Grasshopper Warbler! I found a few, actually, but managed really nice photos of one individual. Another exciting higlight was a Gray's Grasshopper Warbler, which I heard singing in some shrubs on the south end in early evening. Unfortunately no good views, although I'm certain I did see it fly out for a brief moment after some playback.

The rest of the visit was nice, with lots of cuckoos, an Asian Koel, egrets, shrikes, and a Swinhoe's White-eye. Boats were running the next day, and I managed to see some dolphins on the way back to Moseulpo. So, pretty much a perfect visit by late spring standards.

eBird checklists here:


Streaked Shearwaters

Medium Egret (formerly Intermediate, both fairly unsatisfactory names)

Eastern Cattle Egrets

Oriental Cuckoo

Kamchatka Leaf Warbler - fairly numerous on Jeju in mid to late May, sometimes into early June.

Kamchatka Leaf Warbler

Blue Rock Thrush

Eurasian Tree Sparrow

Common Cuckoo

Black Drongo

Tiger Shrike

Black-browed Reed Warbler

Middendorf's Grasshopper Warbler - Oh yeah!

Middendorf's Grasshopper Warbler

Large-billed Crow

Brown Shrike

Asian Brown Flycatcher

Tiger Shrike

Yellow-rumped Flycatcher

Black Drongo

Chinese Pond Heron

Oriental Reed Warbler

White-cheeked Starlings

Eurasian Starling, or Common Starling

Light-vented Bulbul, otherwise known as Chinese Bulbul

Large-billed Crow

Black-browed Reed Warbler

Vanessa sp.

Dollarbird

Blue-and-white Flycatcher

Swinhoe's White-eye - another hard to find bird for Jeju (or perhaps simply underreported)

Tiger Shrike

Chinese Pond Heron


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