A stick . . . you brought me a stick . . . awwwww . . . I Love You!
Make sure you take the time to study your animal subjects - the behavior can be fascinating (and even inspiring). These herons are a perfect example - they have specific rituals not just to mating, but nest building as well. One gathers and then hands off the building material, the other takes the material and adds it to their nest.
Stay in focus!