Rumor has it our fine feathered friend is prepping to add to its arsenal. That is, Twitter might be planning on shelling out somewhere between US$ 40 and 50 million for TweetDeck. 

Officials at the San Francisco-based office declined to comment on the report, but sent out a tweet on April 18 that said: "We don't comment on rumors. We don't provide off-the-record background on rumors. We don't wink twice or release puffs of smoke abt rumors."

However, TechCrunch's Michael Arrington recently reported on the deal with much confidence, stating that it's a defensive move. "They simply couldn’t allow UberMedia to have so much market share in this space." 

TweetDeck had previously been in acquisition discussions with UberMedia, a Pasadena-based company founded by entrepreneur Bill Gross, in a deal that was valued at less than what Twitter has reportedly offered.

UberMedia has been putting together a collection of Twitter applications which some speculate could ultimately be used to create a rival social network.

Should the company purchase TweetDeck for the reported number, it would be Twitter's largest acquisitions to date. Whatever's going to happen will go down some time over the next few days. Keep a look out here