I was reading some info about metering light for white birds and the various pitfalls and good strategies. So, when faced with a bird that is predominantly black (e.g.., black swan), does the inverse apply?

Whilst perusing the options on metering re white birds, it did seem that there were various options available and many varied opinions about said options - almost a "dark art"? I feel it might be educational to have some input on this.

If it has already occurred (and I did have a quick search), then please feel free to point me in the right direction, however, I'd love to hear some views from the great users of light on this forum, cheers Deb