Last weekend, I was lucky to spot a pair of Crested Goshawk (Accipiter trivirgatus, 鳳頭蒼鷹) in the NCKU (National Cheng Kung University) campus, Tainan City, Taiwan. It was my first experience of seeing a pair of Crested Goshawk.
It's an opportunity for me to learn how to distinguish the male and the female Crested Goshawk in the field. I learned in a raptor talk by Hsiao Ching-Liang (蕭慶亮), the author of Field Guide To the Raptor Watch of Taiwan,, saying that the size of the female Crested Goshawk is larger as compared to the male.
From my observation and comparison through the digiscoped pictures, I noticed that the male has smaller body size as compared to the female, it has shorter crest and round head. The male has distinguished yellowish lines near the nostril and the upper beak.
Let's take a closer look at the pictures of the pair.
The male:
and the female:
Besides that, I also heard the call that I have never heard of : "chiup.. chiup..chiup", an alarm call from one of them when I was trying to approach nearer.
Boon Eu, 16-March-2011, Tainan, Taiwan.
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