Whether or not you get upset about 'seagull' doesn't change the fact that neither 'seagull' nor gull (or duck) are species. Naming species was the question being asked at that point.
I'm seen by friends as being very pedantic in all matters, however I do take the point being made above. It's very easy to pick up on other people's 'mistakes' in an area in which you are experienced or passionate, but there does need to be some leeway given to the inexperienced or dispassionate.
I am fully aware that the average person in the street has no idea that there are multiple duck and gull species. I have many times heard the 'they all look the same to me' comment - possibly true in some cases, especially for gulls and many female ducks. But does that not reflect the lack of interest in the subject, which is the real issue - if you're not interested, why would it be worth identifying, and ultimately conserving?
Is identifying wildlife perceived as too difficult? Do some think they 'shouldn't' be interested (too nerdy, too niche, not for people 'like me') in such things? Are there too many other distractions preventing people taking an interest? How do you engage, or even identify, people who might be interested?
I'm aware all of the above is well off the thread topic, but it does relate to the quoted post.