What is a stock dividend?

respond to the following in a minimum of 175 words:
Please watch the following videos and discuss these topics:
Characteristics of corporation
Characteristics of corporation
Issuing stock
Issuing common stock
Common Stocks vs Preferred Stocks | Similarities and Differences – YouTube
Dividend allocation
Dividend allocation
Treatment of treasury stock
Treatment of treasury stock
Stock dividend vs stock split
Stock dividend vs stock split
What is a stock dividend? How is a stock dividend distinguished from a stock split?
For what reason does a corporation usually declare a stock dividend? A stock split?
Discuss the amount, if any, of retained earnings to be capitalized in connection with a stock dividend.