Apus pacificus  

Fork-tailed Swift (Apus pacificus)
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© Vik Dunis 2014
Point Cook, VIC (Mar, 2014)

Fork-tailed Swifts are Summer migrants from the northern hemisphere.

Their appearance wheeling about the sky is often an indicator of coming rain. This was one of two or three Fork-tailed Swifts observed on an overcast day. There were a few spits shortly after and a lot more rain the next day.

One wonders what these birds are doing when the weather is fine.

Fork-tailed Swift (Apus pacificus)

Fork-tailed Swift