Even Birds Can Fall In Love

Even Birds Can Fall In Love In breeding season, glands develop at the base of the tail and along the Rictus or bill of both sexes. These sebaceous glands contain species-specific chemicals for which the opposite sex is attuned. Frequently males mark a “nuptial gift” with pheromone and present the pheromone-laced bits to the female. Sometimes the male places his pheromone-laced nuptial gift somewhere and merely point to it, even arranging special powers to make the pointing as obvious as possible. Once the pheromone is accepted by the female, birds “dance” merely to move pheromone receptor proteins from lacrimal glands

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