Stable fly
mammalian blood (particularly cattle and horses, humans, and pigs to a lesser extent). Although they are extremely common and exist worldwide, it is believed [...] house flies, but are lighter in colour and have biting mouth parts. Both male and female flies feed on animal blood, and females must be engorged with blood [...] Weakened animals and potential anemia from continual irritation, stress and blood feeding. Lower livestock feeding due to stress and avoidance behaviours