Garry Budyk has just sent these interesting behavioral notes:
March 3rd: At home in East Kildonan , I observed a male House Finch doing a spirited courtship dance around a female , with the female following his movements carefully and responding by lowering her head and opening her mouth wide . No food was exchanged but the interaction went on for several minutes . It seems much too soon for a serious mating attempt , but it may show how early House Finches begin their pair bonding and courtship rituals .
March 7th: I observed a male House Finch feeding the female