Richie - The text of Christy's New Songster can be found here: CNS - Hathi Trust Digital Library. You can download single pages as pdfs, so you can get the two pages you need easily. (Full pdf needs a partner login).

I've put the text below.

Mick

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        The Three Crows
  
  As sung by BYRON CHRISTY, JAMES BRYANT, H.WILSON, and
                G.WRIGHTMAN
  
  
  [Spoken] THREE crows they sat upon a tree,
           As black as any crows could be.
             (Spoken) Sing.
             (Repeat the above)
  
  [Spoken] One of these crows, said unto his mate,
           What shall we do for something to eat?
             (Spoken) Sing.
             (Repeat as above)
  
  [Spoken] 'Way on that side of yonder plain, 
           There lies a horse but three days slain.
             (Spoken) Sing.
             (Repeat as above)
  
  [Spoken] We'll jump right on to his backbone,
           And pick out his eyes, one by one.
             (Spoken) Sing.
             (Repeat as above)