The Southern Fiscal (Lanius collaris), is a striking bird of the shrike family, prevalent throughout much of southern Africa. It is colloquially referred to as the 'jackie hangman' or 'butcher bird', a nod to its unique habit of impaling its prey on acacia thorns, a larder for future feasting. This bird was once considered conspecific with the Northern Fiscal, Lanius humeralis, under the collective title of the Common Fiscal.
Adult Southern Fiscals measure between 21 to 23 centimeters in length. They exhibit a bold dichromatic plumage with crisp white underparts contrasting sharply against their sleek black upperparts. A distinctive white "V" marks their back, and their long black tail is adorned with white outer feathers and white tips. Both sexes possess a black bill, eyes, and legs, with the female distinguished by her rufous lower flanks.
The Southern Fiscal is an adaptable species, inhabiting a variety of environments from grasslands adorned with fences suitable for perching, to acacia thornveld and even woodlands. It tends to avoid overly dense areas that would hinder its hunting prowess.
This bird's range extends across southern and eastern parts of the African continent, including parts of Angola, Namibia, South Africa, Eswatini, Lesotho, Mozambique, Zambia, Botswana, Tanzania, Malawi, and Zimbabwe.
A solitary hunter, the Southern Fiscal typically perches in exposed locations or atop shrubs, from where it preys on insects and small rodents. Its territorial range is influenced by the availability of perching sites, with an increase in artificial perches leading to a reduction in territory size. The bird's hunting strategies and physiology adapt to seasonal variations, with changes in body temperature, metabolic rate, and hunting methods observed in response to different environmental conditions.
The Southern Fiscal's vocal repertoire includes a mix of shrike-like sounds, ranging from harsh alarm calls to more melodious songs. While its song may sound sweet, it is generally used for territorial defense or pair bonding.
The Southern Fiscal's diet consists primarily of insects and small rodents. It has been noted as a significant predator of the plain tiger butterfly in eastern Africa. Seasonal changes influence its foraging behavior, with the bird adjusting its hunting times, attack rates, and prey size in response to the availability of food.
The IUCN Red List classifies the Southern Fiscal as Least Concern, indicating that the species does not currently face any significant threats to its survival.