ニシツメナガセキレイかロシアツメナガセキレイか!!
ハクセキレイ、ツメナガセキレイ、ムネアカタヒバリ合わせて100羽ほどの群れの中に1羽だけ異彩を放つ個体を発見。
周りの(キマユ)ツメナガセキレイとは換羽の進み具合が違うこともさることながら、明るい青灰色の頭部や太く長い眉斑、白い目の下や喉元などニシツメナガセキレイ( Motacilla flava beema )かロシアツメナガセキレイ( Motacilla flava flava )の可能性があります。
ちなみにニシツメナガセキレイはツメナガセキレイとは別種とする分類もあるそうで、その場合、ロシアツメナガセキレイはニシツメナガセキレイの亜種となります。
ただ、この個体は第1回冬羽なのでもう少し換羽が進まないと決め手にならないようです。大量にいるセキレイの中からこんな個体を探し出すのも楽しいですね。
ハクセキレイの群れには、ハクセキレイのほかにタイワンハクセキレイとホオジロハクセキレイがいました。
An individual that looks distinctly odd — probably a Western Yellow Wagtail or an Eastern Yellow Wagtail. That said, there are cases where first-winter Citrine Wagtails moulting into summer plumage also show white below the eye.
Same individual as above. The bright blue-grey of the head and the white throat are striking.
Same individual as above, in the centre.
This one is a perfectly ordinary (Yellow-browed) Eastern Yellow Wagtail, first-winter.
Also a (Yellow-browed) Eastern Yellow Wagtail, first-winter. No Citrine Wagtails mixed in.
White Wagtail (ocularis), first-winter.
Also a White Wagtail (ocularis), first-winter.
A White Wagtail that caught my attention.
Also a White Wagtail.
White Wagtail (ocularis), first-winter.
White Wagtail (leucopsis), first-winter.
Around 20 Red-throated Pipits.
They tend to stay hidden in the grass like this, which makes observation tough.
Even when they come out onto the ridge, they're so far away…
