Damn, good to know PTA is a lot closer than Pietermaritzburg, might need to check it out if i do not get lucky with the eggs, but still 50Km, so will need a good excuse to go though

. You guys should update on silph road to help the cause
the Brooklyn area in question is a nest, but it is currently listed as Drowzy.
I drove though the area last week we stopped there and caught a few omnimite and Maril.
I have also in the past caugth a Dratini there.
so as far as the Blue crane/Bird sanctuary goes in terms of Biome it is interesting.
you might find magicarp
you might find Slowpoke (it was a nest at one stage)
you might find OMnimite
you might find Kabuto
you might find poliwhirl
you might find Maril
you will find Sandshrew
you will find Ekans
you will find Geodude
you will find Meowth
you will find SNowbull
you will find Ponytah
you will find growlith
you will find Houndoom
you will find pidgey
so that is one are that is in Desert Biome (sandshrew), City Biome (pidgey/ratata) and "river" Biome (carp/Poli/craby)
but it also has uncommon spawns from the "seaside" or "pier" Biome (dratini,Slowpoke)
so in general you can find almost anything there outside of grass types.
and this I have found to be true for everything from Magnolia del all the way along the river though the bird sanctuary to Brooklyn mall
it is the only area I have encountered that is like that, everywhere else, it is basically just one Biome, maybe two.
like at work for me is 100% desert ass is home.
Flora farm/newscafe in boksburg is grass + water.
Biomes is still the most interesting thing in pokemon go for me. its something you can get a feel for and then still be suprised.