eagle_treatment_effect

eagle_treatment_effect = {
	$HEALER$ = { save_scope_as = healer }
	random_list = {
		15 = { # Treatment is very successful
			modifier = {
				is_alive = yes
				add = scope:healer.learning
			}
			modifier = {
				flag:$BONUS$ = flag:court_physician
				add = 5
			}
			desc = pet_animal.3030.very_good
			stress_and_fulfillment_impact = {
				base = medium_stress_impact_loss
			}
			send_interface_toast = {
				title = pet_animal.eagle_unweak_title
				type = event_toast_effect_good
				left_icon = root
				right_icon = scope:healer
				unweaken_eagle_effect = { FULL = yes }
				add_character_modifier = {
					modifier = strong_eagle_modifier
					years = 3
				}
				add_opinion = {
					modifier = grateful_opinion
					target = scope:healer
					opinion = 25
				}
			}
		}
		30 = { # Treatment is successful
			modifier = {
				is_alive = yes
				add = scope:healer.learning
			}
			modifier = {
				flag:$BONUS$ = flag:court_physician
				add = 10
			}
			modifier = {
				OR = {
					flag:$BONUS$ = flag:courtier
					flag:$BONUS$ = flag:hunter
				}
				add = 20
			}
			desc = pet_animal.3030.good
			stress_and_fulfillment_impact = {
				base = minor_stress_impact_loss
			}
			send_interface_toast = {
				title = pet_animal.eagle_unweak_title
				type = event_toast_effect_good
				left_icon = root
				right_icon = scope:healer
				unweaken_eagle_effect = { FULL = no }
				add_opinion = {
					modifier = grateful_opinion
					target = scope:healer
					opinion = 15
				}
			}
		}
		40 = { # Treatment is unsuccessful
			modifier = {
				flag:$BONUS$ = flag:court_physician
				add = -15
			}
			modifier = {
				flag:$BONUS$ = flag:courtier
				add = -7
			}
			desc = pet_animal.3030.nothing
			stress_and_fulfillment_impact = {
				base = miniscule_stress_impact_gain
				callous = miniscule_stress_impact_loss
			}
			send_interface_toast = {
				title = pet_animal.3030.nothing
				type = event_toast_effect_bad
				left_icon = root
				right_icon = scope:healer
				add_opinion = {
					modifier = disappointed_opinion
					target = scope:healer
					opinion = -15
				}
			}
		}
		20 = { # Makes it worse somehow
			modifier = {
				flag:$BONUS$ = flag:court_physician
				add = -10
			}
			modifier = {
				flag:$BONUS$ = flag:courtier
				add = -5
			}
			desc = pet_animal.3030.bad
			stress_and_fulfillment_impact = {
				base = minor_stress_impact_gain
				callous = minor_stress_impact_loss
			}
			send_interface_toast = {
				title = pet_animal.eagle_unweak_title
				type = event_toast_effect_bad
				left_icon = root
				right_icon = scope:healer
				weaken_eagle_effect = yes
				add_opinion = {
					modifier = angry_opinion
					target = scope:healer
					opinion = -25
				}
			}
		}
	}

As written in game/common/scripted_effects/00_animal_effects.txt.