No one knows for sure, but it is possible.
Brightspirit looks sort of like Jayfeather because she is a gray tabby with blue eyes
No. their real mother is Leafpool.
She was a member of Thunderclan. no she wasn't she was named after a real life little girl(who loved warriors) who died with her family. The Erins heard about this and amde a character for her in long shadows. It is unknown where she is from.
Well, Jayfeather is a medicine cat so no one will love him, but in Long Shadows, when he was Jay's Wing, Half Moon liked him. Also in Long Shadow's, it is shown that Poppyfrost has a liking for Jayfeather even though he is a medicine cat (medicine cat apprentice in long shadows).
Jayfeather's parents are Brambleclaw and Squirrelflight!
Jayfeather Jayfeather He doesn't have a warrior name, just a Clan name which is Jayfeather. cool, huh?
Crowfeather is Jayfeather, Lionblaze and Hollyleaf's father.
Breezepelt told Jayfeather that he would make him pay for his actions. He expressed anger and hostility towards Jayfeather during their interaction.
Jayfeather belongs to ThunderClan and his parents are Leafpool of ThunderClan and Crowfeather of WindClan.
Jayfeather is a medicine cat so he is forbidden to 'like' anyone.
Well there certainly is a pattern to the warrior books. Firestar killed his half brother Scourge and Brambleclaw killed his half brother Hawkfrost so Jayfeather or Lionblaze will kill Breezepelt. I would think mabe even Leafpool will kill Breezepelt trying to save Jayfeather or Lionblaze because she loves them and mabe Breezepelt set up an ambush or trap. Moonshadow & Icecloud:)
Lionblaze and Hollyleaf are the two Clan cats who have a strong bond with Jayfeather in the Warriors series. They are his littermates and support him through his challenges and adventures in the story.