K_Chan

Bravo shots 9Wi. But what is "Componon-S 放相鏡頭" that you have used for the shooting?
Why the second left swallow was not fed by its parent? Interesting behaviour indeed, more than sole identification.

K_Chan

謝過"九歪"和Captain分別對器材和家燕幼哺的回覆。
"九歪"照片很正, 余昧於攝影, 有關Digiscoping, 還望多多賜教。