Does the Apple Photos app support the use of Hierarchical keywords? e.g. Birds-->sparrows etc

thanks very much for your response. Much appreciated.

If I understand you correctly:

1. if I just search on birds, without entering it as a keyword, then Photos will return all pictures of birds regardless of species. If I enter sparrow, crane, eagle, crow etc as keywords, then search on any one, of those, only those will be returned. If I search on multiples comma separated, then I get all specified in the search retirned, but only those. i.e. sparrow, eagle returns just those 2?
2. in case of a place like: Mexico 2018 Mazatlán Carnival , Puerto Vallarta Secrets from the same shoot, how would I tag pics with all that information easily? Would photos be able to discern and of that information just from the pics themselves based on metadata on each pic? or would it even look there for information? Some pics might have GPS information on them and some not. From what I have demod to me, Photos is pretty clever, so if I searched on Mexico 2019 for instance, what would be returned?

once again thanks for your help with this. Trying to build a case to switch to a Mac since Windows is starting to get 2 flaky.

cheers!

Garry

thanks leonie...

I don't think this is a practical solution because many photos have multiple keywords associated with them, and I cannot copy paste them into the iptc data field. For example photo has the following ACDSEE keywords associated with it:

Mazatlan 2018, Mexico, Pueblo Bonito - Emerald Bay, Resorts - Hotels - Areas if I copy this string into the IPTC keyword space in ACDSee, they look like they are added to the IPTC keyword list, but they do not hold. moving off the pic and back, the information in IPTC is blank.

for the example just mentioned, the following shows how I assign the keywords in ACDSEE. its simple and fast by just clicking on the keyword in the list. The list is organized according to the general grouping of the keywords, so as mentioned fast and simple. If I have to recreate the entire set of keywords I have one by one in Photos they would all be listed aphabetically so assigning would be a slow process flipping through the Photos keywords... un;ess I am missing something?

as another example.... i have a photo of a bird. I click on 'birds" then choose the bird(s) in the photo and click on the entry in the keyword list. So trying to determine how I could do this photos quickly once the images are ready to load into the database. I have many thousands of photos already keyworded and with facial rec specified. There is also a longs list of People already catalog to the faces in the pics. any further suggestions?

One more question while I think if it:

Can I import a keyword list I export from ACDSee as a text file (windows) into Photos to save retyping all my keywords?

thanks again.

Garry