===Development after two clubs===
  
Unlike other 1\C systems, the Canary 2\C opening is never made with major suit length. As a consequence, there is no need to have a mechanism for uncovering 4-4 major suit fits (usually a response of 2\D is used for that purpose in other 1\C systems). Canary Club uses the 2\D and 2\H bids to show length (5+ cards) in the next higher suit and at least game invitational values. 

  

Responses: 

  * 2\D shows 5+ \h (forcing)  
  * 2\H shows 5+ \S (forcing) 
  * 2\S artificial relay (shows at least game invitational values) 
  * 2N natural, forcing 
  * 3\C/4\C semi-preemptive 
  * 3\D/3\H/3\S HHxxxx game force 
  * 3N to play  

2\C    2\D/\H 
  
The opener accepts the transfer with 3-card support. Sometimes the transfer is accepted with only 2-card support if the Clubs are too weak to rebid and the hand is not strong enough to bid 2N. 

Opener bids 3\D with a \D suit and reversing strength. Opener bids a new suit (not \D) or jump "raises" with a good hand with support. The new suit shows a singleton (in the suit bid). 


2\C    2\S 
  
Opener rebids 2N with a maximum hand (usually 14 - 16 HCP). Responder's 3\c now asks for a singleton (if any).
  
If the opener bids 3\D over 2\S, he is showing a hand with reversing strength and a four-card \D suit. All minimum hands are shown with a 3\C bid. 

The opener's rebid of 3N shows a solid suit and no outside Aces or Kings.  4\c then is not forcing, and 4 other is a control.   --- //[[John@Kinn.Org|John Kinn]] 2019/02/19 15:21//


After 2\C - 2\S - 2N/3\C: 

  * 3\d shows a \D stopper for No Trump  
  * 3\H shows a \H stopper for No Trump and denies a \D stopper  
  * 3\S shows a \S stopper for No Trump and denies a \D or \H stopper  
  

The opener rebids 3N if he stops the other 2 suits; otherwise, he shows his stopper over 3\D and bids 3\S over 3\H to show his \D (repeat \D) stopper. 

Examples:

|2\C  |2\S   |  
|2N(=extras)  |3\D (shows \D stopper)  |
|3\H  |(shows \H stopper, no \S stopper)|
|3\S  |(shows \S stopper, no \H stopper)|
|3N  |(shows \H and \S stoppers)  |

 
|2\c|2\S|  
|3\c(=minimum)|3\h (shows \H stopper, denies \D stopper) |
|3\S|(shows \D :!: stopper, no \S stopper)|
|3N|(shows \D and \S stoppers)  |


After 2\C - 2N
  

The opener shows a singleton if he has one. He bids the suit in which he has shortness bidding 3N with no shortness. If the opener bids 3\C, he is showing a secondary \D suit and reversing strength. 

Additional note. After transfers, new suits are forcing. 

Examples

|2\C|2\H|  
|2N|3\D|force  |
| |3\C|non-force|
| |3\H|force|  
| | 3\S|non-force|

 
|2\C|2\D|
|2\H|3\C|non-force (the principle of double fit does not apply\\ because the Heart fit is not established)|
| |3\D|force  |
| |3\H|non-force  |
| |3\S|force|


====Competitive auctions after 2 Clubs====
  
If the enemy bids directly over 2\C with: 

  *Double
    *Pass - ambiguous  
    *Re-double - penalties
    *Other calls retain meaning  
  *Suit bid
    * Double - penalties
    * New suits forcing
    * Cue bid asks for a stopper  
    * \c raises are competitive