Hepatic tanager to the song of the black-headed grosbeak, another member of the Cardinalidae. The flight call is a husky and rising "weet". It looks for food in the foliage of trees, moving slowly and methodically; different individuals use different strategies. In summer, the northern form largely eats insects, spiders and some fruit. In Mexico, it has been observed to eat nectar. From Oaxaca south, it follows swarms of army ants. Even the northern population's behavior and life history are remarkably little known. Hepatic tanager The hepatic tanager ("Piranga flava") is a medium-sized American songbird. Formerly placed in the tanager family (Thraupidae),
Organ gifting by some as a mechanism through which the economic relations behind organ/tissue production, distribution, and consumption can be disguised. Organ/tissue gifting differs from commodification in the sense that anonymity and social trust are emphasized to reduce the offer and request of monetary compensation. It is reasoned that the implementation of the gift-giving analogy to organ transactions shows greater respect for the diseased body, honors the donor, and transforms the transaction into a morally acceptable and desirable act that is borne out of voluntarism and altruism. The concept of gifting with regards to body parts or fluids was first analyzed by