oh for heavens sake, ya'all got a colony back there... even though you haven't seen them all yet, you may well see more in your trips out there! You better put blinders on!
I remember trapping a full grown pregnant Siamese years ago, (I was convinced she must be tame- NO- FERAL as all get go!!! If she could hit me she would, she stayed on the upper shelf of her cage to avoid me which caused me anx when her babies were crying for her!- some ferals are so upset they just ignore the babies....) she gave birth to a mix of babies, black and white, calico, and one snowshoe siamese. The snowshoe died after much effort and cost on my part and the autopsy revealed distemper. The calico was "dead" on my couch one day but I rushed her to my vet who detected a slight heart beat and basically brought her back to life! She thrived and was adopted out! My point is that yes, there are feral siamese out there!