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Full disclosure: I am not familiar with North American birds at all. So, I will probably write quite a few posts excitedly discussing species that our readers in the US find boring as hell. Well, you are more than welcome to come to Shanghai and talk about your fascination with Light-vented Bulbuls and Oriental Magpie-robins …
The Chestnut-sided Warbler was a particular surprise to me – by the looks of it, a bird I would have located somewhere in the neotropics (where, admittedly, it wisely spends the winter), not in the then rather frigid Maine.
It is an attractive and interesting-looking bird – or, to quote James Giroux: “Unlike many warblers that are precisely ‘painted’, the Chestnut-sided is a splotchy collection of color – more like an abstract painting. It’s the Jackson Pollock of warblers.”
Apparently, it has benefited dramatically from human activities in the US, preferring scrubby habitats such as those in suburbs or cemeteries (where I took my photos) to primeval forests (source: HBW).
It may also benefit from climate change – one paper states that it now (after 1970) arrives seven days earlier in spring in a specific region than before 1970.
In the HBW profile, it is interesting to see what is listed as priorities for future research: “To define where songs are used and under what conditions, variability in the use of songs needs more study. The extreme stereotypy of the AE song category raises several interesting questions. By what means is the stereotypy of the AE songs enforced, and what is the significance of this?”
Of course, for most global bird species, not nearly enough information is available to even phrase such follow-on questions. And of course, the HBW profiles for these birds do not even have a “Priorities for Future Research” section …
Written by Kai Pflug
Kai has lived in Shanghai for 22 years. He only started birding after moving to China, so he is far more familiar with Chinese birds than the ones back in his native Germany. As a birder, he considers himself strictly average and tries to make up for it with photography, which he shares on a separate website. Alas, most of the photos are pretty average as well. He hopes that few clients of his consulting firm—focused on China’s chemical industry—ever find this blog, as it might raise questions about his professional priorities. Much of his time is spent either editing posts for 10,000 Birds or cleaning the litter boxes of his numerous indoor cats. He occasionally considers writing a piece comparing the two activities.
English (US) · 
French (CA) ·