Based on the geography of the Canary Islands, between Bermudan and European.
Meanings
(not-comparable, of an option) That can be exercised on quarterly dates, a set time period (usually one year) after the issue date, and before the expiry date.
Canary callable bonds are a type of step-up bond that is a hybrid structure, having elements of both Bermudan and European calls. 2005, Gary Strumeyer, chapter 9, in Investing in Fixed Income Securities: Understanding the Bond Market, John Wiley & Sons:
The canary bond is unique in that it is callable during the period before the security converts to a noncallable or bullet structure; the canary callable coupon can possess a step-up feature. 2006, Ben Finkelstein, The Politics of Public Fund Investing: How to Modify Wall Street to Fit Main Street, Touchstone, page 123:
A (receiver) Canary swaption has two expiry dates 0 < θ₁ < θ₂ ≤ t₀ and involved two swaps Sⁱ (i = 1, 2) with cash -flows (t_(i,j), c_(i,j)) (1 ≤ j ≤ nᵢ). 2006, Marc Henrard, Numerical integration for Canary swaptions in the gaussian HJM model, Bank for International Settlements, page 5: