All currently contained instances
I think this would read better as "All instances of… currently in containment."
in containment chambers large enough for comfortable flight and exercise
Birds don't exactly exercise. I think "movement" might be a more appropriate word here.
due to the sheer number of currently contained specimens
Consider replacing "sheer" with something like "large", it just reads more clinically.
with two (2) "spray-mist" humidifiers
A. I generally advise against "number (#)" syntax. It's unnecessary and just sort of clutters the sentence.
B. I think the phrase "spray-mist" is unnecessary.
running at all times in each of their respective chambers.
This "their" technically refers to the containment chambers, so this sentence reads "in each of the containment chambers' containment chambers".
These species can differ greatly in appearance
This feels redundant. We know that different species of birds look different.
Specimens of the SCP
In-universe, objects are typically not referred to as "SCP"s but as "objects", "items", "entities", etc.
camouflage themselves by taking on the environment
What does this mean?
condensed water vapor (clouds)
I suggest cutting the "(clouds)", to make this read a little more clinically.
to have preferences in regard to cloud types: some prefer cirrus, some prefer cumulus
I suggest just ending this sentence after "types".
SCP-2285-7 infallibly prefer
"infallibly" is not a very scientific term.
what their biological lungs
As opposed to… their mechanical lungs? Their psychological lungs?
In addition, determining the difference between a regular Anodorhynchus glaucus and SCP-2285-3 requires at least seven (7) days of observation
Why?
As such, the Foundation must avoid attention from the IUCN
The IUCN is a functionally powerless entity that a vast and powerful entity like the Foundation would likely have zero problem sidestepping.
Despite being the largest bird, SCP-2285-6's preferred cloud is cirrus.
There really hasn't been any evidence put forward linking bird size and cloud-diet, so I think this bit is unnecessary.
SCP-2285-7's preferred clouds are those found in a supercell
So does this eagle also somehow have the ability to fly normally in incredibly intense wind?
As supercell clouds contain amounts of electricity
"amount of electricity" is not really scientific phrasing.
Whether this is due to the lack of SCP-2285 in natural environments is unknown
I understand that these are anomalous birds, but expecting me to believe that only 470 birds can control the entire world's weather patters is absurd.
