Stupid duck question

[RUGER]

What is a Blackjack?

I did a search for blackjack duck and it appears to me that black jack or "jack" is slang for a certain species?

 

[UTgodevil23]

Ringneck

 

[Polar Kraft]

What he said

Sent from my SM-G955U using Tapatalk

 

[RUGER]

Awesome, thanks!

 

[Pic IN the Casa]

Thought this was going to be about Daffy Duck. Very disappointed. Lol