A pidgeon crosses contrails of a plane as sun somes up in the morning sky over Frankfurt, Jan.30.
(Canon EOS 1d MkIV, EF 2.8 70-200, 200asa, f 3.5, 1/800sec.)
Two contrails form the Scottish flag in the blue sky over Frankfurt, Jan.7.
(Anyone having no idea what the “Banner o Scotland” or “Bratach na h-Alba” looks like can find an example of the original at the bottom right corner)
A plane leaves its contrails in the sky over Frankfurt, Dec.3.
Contrails dissolve in the morning sky over Frankfurt, Dec.3.
The waning crescent moon and a plane early morning, Oct.2, in the blue sky over Frankfurt.