Icons that are designed to be so small need to be extremely easy to recognize. Unfortunately, yours are not, mate.
Fair point, I guess simplicity is sometimes the key. I liked the idea though, so tried increasing the size a bit. Maybe they look a little less fish like now
I quite like the Sherlock Holmes ones someone did, instantly recognizable. 
300 reports
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5000 reportsOr possibly another one of birds, as in the old saying 'a little birdie told me'...
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