OP members contacting each other

[jlv230]

No: HPFGUIDX 130319

>It could be something similar though. Does it have any connection 
with the Patronus? It's also silvery stuff and you have to think to 
make it happen (ok, most of the wizarding spells are made by 
thinking, so not a valid point by this evidence)

>Danny (who couldn't find the scenes with Dumbledore in the earlier
books)

JLV here:
I don't think it's a `pensieve thought-strand' either. I am inclined 
to think it is a patronus
 and I am basing this on the following 
bits of canon: 

"Rumour: The Order of the Phoenix communicates using chocolate frog 
cards.
JKR: This is such a great idea that I was in two minds whether to 
shoot it down; however, a chocolate frog card, or any object that 
would have to be remembered and carried on the person, would always 
be vulnerable to loss, destruction or trickery. The Order 
communicates in a way that requires nothing but a wand. You saw the 
Order's method of communication in use even before you knew about 
the existence of the Order; it was employed by an Order member." 
(Website Rumours section)

Connecting this to the silvery thing Dumbledore shoots out in GoF 
(ch. 28, p. 486, UK ed.):
"[Dumbledore] raised his wand into the air and pointed it in the 
direction of Hagrid's cabin. Harry saw something silvery dart out of 
it and streak away through the trees like a ghostly bird."

I believe this is the method because:
1) Dumbledore seems to be sending a message to Hagrid
2) It only required a wand
3) We saw it before we knew about the Order
As far as I have seen in discussions on this subject, no-one has 
come up with any other moment in the books which also fits these 
criteria - but that doesn't mean there isn't one!

In making the connection between this "ghostly bird" and a patronus, 
I defer to descriptions of Patroni in PoA ans this Edinburgh Book 
Day quote: 
"What form does Dumbledore's Patronus take? 
Good question. Can anyone guess? You have had a clue. There was a 
little whisper there. It is a phoenix, which is very representative 
of Dumbledore for reasons that I am sure you can guess."

Now, I took this clue to which JKR refers to be *exactly the same 
scene* in GoF where Dumbledore sends out the silvery thing. It is 
only a clue because we don't get to see the form of the bird because 
it is moving so fast. Now, it could be that I have completely 
misinterpreted this and the clue is just that Dumbledore has a 
Phoenix, but the fact she says "a clue" not "some clues" leads me to 
believe that she is referring to a specific incident – this moment 
on GoF – rather than a more general selection of clues. But this is 
all just my opinion, of course!

JLV xx