conditions météorologiques (1) temps (météo) (1) stress (1) comportement (1) physiologie (1) anticorps (1) immunité (1) effet (1) froid (1) taux (1) nidification (1) Deterioration (1) Physiology (1) Variation (1) Winds (1) Weather (1) Variations (1) Swifts (1) Physiology (1) Manufacturers' agents (1) Immunity (1) Flies (1) Evidence (1) Corticosterone (1) Competition (1) Commission merchants (1) Cold (1) Brothers and sisters (1) Animals (1) Altitudes (1)