Please help with the meaning of following sentence:
"Some like the word naturalist, meaning a person with no supernatural views. This really appeals to me in one way, but naturalist instantly brings to mind David Attenborough in a safari hat, whispering and pointing at a rare blue-footed booby. Other people prefer secularist, though this technically has the narrower meaning of an advocate for the separation of religion from public and political life."
Thank you in advance
A blue-footed booby is a bird. The person is saying that the phrase "naturalist" makes them think of David Attenborough (a famous TV naturalist) pointing at a blue-footed booby bird and talking about it in his famous whispering voice! It's just an example. He could have simply said "The word naturalist makes me think of David Attenborough".
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.