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German wasp | Vespula germanica

German wasp

Vespula germanica

Coral bush | Ardisia crenata

Coral bush

Ardisia crenata

Purple loosestrife | Lythrum salicaria

Purple loosestrife

Lythrum salicaria

Pom pom weed | Campuloclinium macrocephalum

Pom pom weed

Campuloclinium macrocephalum

Canarybird bush | Crotalaria agatiflora

Canarybird bush

Crotalaria agatiflora

Peanut butter cassia | Senna didymobotrya

Peanut butter cassia

Senna didymobotrya

Rubber vine | Cryptostegia grandiflora

Rubber vine

Cryptostegia grandiflora

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Environmental Programmes

In order to tackle our country’s socio-economic challenges, the government adopted the Outcomes based approach to improve government performance and providing focus on service delivery. find out more

House Crow

Corvus splendens

Common name:

House Crow

Scientific name:

Corvus splendens


The smallest house crow in South Africa, found in the Western Cape, KwaZulu-Natal, and Eastern Cape. It has a black body with glossy bluish-black wings and a paler grey nape. The facial region is dark black with small black eyes and a large black bill. Originally from India, populations have established in Richard’s Bay, Durban and Cape Town. It destroys vegetable gardens, preys on eggs, nestlings of South African birds.

Additional Info

  • Where does this species come from?


    What is its invasive status in South Africa?

    NEMBA – Category 1a

    Where in South Africa is it a problem?

    Durban (KwaZulu-Natal), Cape Town (Western Cape) and East London (Eastern Cape).

    How does it spread?

    Strongly associated with human settlements.

    Why is it a problem?

    Preys on eggs and nestling of native birds, also eat small native animals. Mobs humans and pets. Occasionally destroys vegetable gardens in informal settlements. Vector for pathogens that cause cholera, typhoid, dysentery and salmonella poisoning.

    What does it look like?

    Description: This is the smallest crow species in South Africa. It has a glossy black body with grey or greyish brown nape, mantle and breast. The bill, legs and feet are black. Habitat: Entirely urban and suburban areas in South Africa, especially industrial sites and informal settlements. Breeding: Displays in flight with rapid, shallow wing-beats, wings held below body, while giving gargling call. The nest is built mainly by female, with material brought by the male. Nest placed among slender branches at the top of a tall shrub. The eggs are laid from July-January in South Africa. The eggs are pale dark pink, spotted and speckled with red-brown, purplish grey and dark pink in colour. Incubation is rapid and takes 8-9 days. The newly hatched young have reddish-orange body and bill, gape edges and mouth deep pink. Short, grey down on feather tracts, except for head and thighs, short bristles on end of rump.

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General News Updates

2019 National Symposium on Biological Invasio…


This is your invitation to South Africa's 2019 National Symposium on Biological Invasions. The convention is hosted by the Centre for Invasion Biology (CIB), University of Stellenbosch, and the Biolo... Read more

2019 Invasive Species Training


During the past five years (2014-2018), ISSA invasive species trainers have trained 4 000 in the identification of invasive species and laws pertaining to invasive species across South Africa.  ... Read more

Alien Grass Working Group


Who are we? The South African National Alien Grass Working Group was jointly initiated by the South African Biodiversity Institute (SANBI) and the Centre for Excellence in Invasion Biology (C·I·B) in... Read more

Permits for planting indigenous Cynodon?


On 16 February, 2018, South Africa's Department of Environmental Affairs issued amendments to the regulations and lists relating to the National List of Invasive Species.  Updates to the draft&n... Read more

Invasive species training 2018 dates released


Interested in invasive species?  How much do you know about NEMBA invasive species compliance for landowners and organs of state? The South African Green Industries Council (SAGIC) have released... Read more

Communications post for Africa advertised


The Nature Conservancy has advertised a brand new post:  Communications Manager, Africa Region. Knowledge of invasive species and water would be an asset in this post. See details below:    Job Titl... Read more