Valuable birds?

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I've got a few bird series notes here that I think may be worth a little something.  First is 4 $2 notes in sequence.  I was wondering what they are worth, and would it be better to sell them all together, or split up and sell separately?




Then this single $2 I'm wondering what it's worth...




Finally, this $5 note that has a blue number on the back, as opposed to a yellow one.





Thanks!

These are really good notes you have
The 4 AUL notes appear to be in UNC condition, if this is correct then they're worth $60 each
The AUG note which is somewhat more common, looks like an EF with a light fold, so it should be worth around $10
finally the $5 note, this an ENX replacement note with the blue back plate number which is slightly more common than the yellow ENX but still a scarce note. The note looks to be UNC so it will be worth around $250.
hope this helps

Thanks.  I actually thought on the $5 bill that the yellow number was more common and worth less than the blue number on the back.  We've decided to have these bills professionally graded, along with the $100 Devil Face that we have. 

Unless trends have changed really recently, Bird series notes tend to sell far below catalogue "value".  To answer the original question, the run of $2 AUL notes should be split up if put up for sale as runs of consecutive notes don't command a premium (especially if it's hard getting a good price for singles) and groups of notes appeal to fewer prospective buyers.

Thanks mmars.  We had the notes graded today.  I was very happy to have 2 of AUL's graded at Choice UNC 64 and the other 2 at Choice UNC 62.  I will definitely be selling them separately, but at the same time, so the chance of a prospective buyer wanting all 4 in sequence is possible as well.