How did Umbridge know?

[slgazit]

No: HPFGUIDX 112879

--- In HPforGrownups at yahoogroups.com, theotokos <theotokos_8679 at s...>
wrote:
  In the American HB page 474:  
>  
>      There was a flash of flame in the very middle of the office,
leaving behind a single golden feather that floated gently to the floor.
>      "It is Fawkes's warning," said Dumbledore, catching the feather
as it fell.  "She must know you're out of your beds....Minerva, go and
head her off--tell her any story--"
>  
> I think it is agreed who the "she" is but how did she know?  It is
the middle of the night for goodness sakes!  Does she somehow have the
portraits watched or watching?

This is actually fairly easy to figure out. When McGonnagal was taking
Harry and Ron to Dumbledore's office, they met the caretaker's cat,
Mrs. Norris. She must have run straight to Filch, and he to Umbridge...

Salit