White-breated Nuthatch courtship has begun

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I noticed yesterday (March 20th), that a White Breasted Nuthatch pair has been courting each other. There courtship antics include, jumping, bowing their heads, fanning their tails, carrying and presenting gifts to each other; flying short distances together from tree to tree, etc. This is actually the first time I have witnessed this. They should begin nesting in a week or so with good weather. Click to enlarge. Taken with a Canon 7D and a Canon EF400 f/5.6L lens at 1/1250 second.