Dominant Snowshoe Siamese

[CrazySnowshoe]

Hi I am new here and I am hoping someone can help me. This is a long story but will hopefully help reveal my cats inner problem!!
Almost 2 years ago a feral cat had babies in backyard. We fed them and made beds for them. They became part of the family, we just couldn't have physical contact with them. Several months later a stray showed up in our yard (found out she was a Snowshoe Siamese under 1 year old, we named her Lucy Lu (aka Lucy-fer )). Lucy slept with the ferals and was friends with them. She was very timid and shy and ran whenever I tried to get close to her. After weeks of working on her to trust me I was able to pick her up. But right after that she became a bully to the babies that she once slept with and was friends with. She became controlling over the yard and would chase them out. Well I adored her and eventually moved her inside with my other 2 cats (1 female siamese and 1 male tabby) both 5+ years old. She became very dominent with them also, trapping them under beds or anywhere she could sit and watch them and make sure they didn't come out. My male cat eventually beat her up and she grew to respect him. The other cat pretty much stays to herself anyways.
1 year ago one of the baby ferals had babies of her own. We knew we couldn't keep having babies so we got involved in the Trap Nueter Release program here in Colorado. Anyhow we started to handle the new babies so we could domesticate them. We had luck with 2 of the 3. One of them we have taken in, her name is Katy. She is a very happy and affectionate kitten. Gets along with the older cats perfectly and wants to be friends with Lucy. But Lucy now has one objective in life and that is to find Katy and keep her trapped. Katy will be sitting on a chair and Lucy will aggressively run up to Katy and start slapping her, leaving scratches on her ears and nose. Yelling does no good, she just tunes you out. The squirt bottle only helps for a few minutes. Putting her in time out in her own room helps to keep them seperated, now she automatically runs there after she attacks Katy.
Everything I read about Snowshoe Siamese say they get along great with other animals. This is so not true. We have had Katy in the house about 7 months now and the attacks are only getting worse. Katy is a lover not a fighter and think thats why she really doesn't fight back.
So any suggestions or advice would be welcome.

[jason]

Katy will be sitting on a chair and Lucy will aggressively run up to Katy and start slapping her, leaving scratches on her ears and nose. Yelling does no good, she just tunes you out. The squirt bottle only helps for a few minutes. Putting her in time out in her own room helps to keep them seperated, now she automatically runs there after she attacks Katy.

the physical agression to the extent you mention is of course a bad situation. what is really good to hear is that Lucy has understood what that time-out area is for.

how long are you keeping Lucy in time-out when she attacks Katy?

i would keep Lucy there for at least an hour with food/water/litter and also place Katy in there for the times when Lucy is the most alert and active (not attacking, just most awake). allowing Lucy some space without Katy might give her some reign without feeling threatened and just might eventually bring the two of them together since they will be taking turns in the time-out room.

in general, i would have to say Lucy's initial introduction to your two resident cats was not done in the best way...although you say she respects the male, there still may be some tension there its just that she is now intimidated by him. all of this is probably causing a great deal of stress on them. have you checked my post near the top of this forum? "Feline Introductions"