I desperately need the author and title of a sesame street book of
which I only have fragments.  From what I can gather from the
fragments, at least part of the plot of the book has to do with Big
Bird being lost and he manages to find his way back to Sesame Street
and makes it to a party.  Mr. Hooper received a delivery of birdseed
for Big Bird, withwhich Big Bird made a giant birdseed pie.  Some
direct quotes I can give you include the following:  "So Big Bird got
his birdseed from Mr. Hooper's store after all."  "Big Bird had found
his way back to Sesame Street without even knowing it!"
Now keep in mind that these two quotes are not together, they are in
different paragraphs from what I can tell from the fragments.  I need
a title, author, and if possible a way to procure a copy.  Title and
author are absolutely vital though.  Thanks a lot.

Hello.

The book that you're looking for is "Big Bird Gets Lost" (1978) by
Patricia Thackray; illustrated by Carol Nicklaus.

According to the listing at the Library of Congress [
http://catalog.loc.gov ], the story includes all of the elements that
you mention (i.e., birdseed, Big Bird being lost, and a party). Here
is the Library of Congress description: "Big Bird loses his way while
shopping for bird seed for his nest-warming party."

Here is additional information from the Library of Congress catalog:

Author: Thackray, Patricia.
Main Title: Big Bird gets lost / by Patricia Thackray ; pictures by
Carol Nicklaus.
Published/Created:	[Racine, Wis.] : Western Pub. Co., c1978.
Description:	[28] p. : col. ill. ; 25 cm.
ISBN:	0307135241
Summary: Big Bird loses his way while shopping for bird seed for his
nest-warming party. The reader can experience some of the fragrances
Big Bird encounters on his trip by scratching and sniffing treated
pages.
Notes:	"A Sesame Street/Golden Press book."
LC Classification:	PZ7.T298 Bi

Numerous used copies are available for sale from Alibris:
http://www.alibris.com/search/search.cfm?chunk=25&qtit=Big%20Bird%20Gets%20Lost&qauth=&qsort=p

Other copies are available at
Abebooks:http://dogbert.abebooks.com/servlet/BookDetailsPL?bi=45556505

search strategy: library of congress, big bird lost

I hope this helps.

I was greatly impressed by the rapid attention my question was given
and with the quality of the answer.  This answer will save me from
failing an assignment I was given at Western Kentucky University.  I
will definately be using this service again.  Thanks.