TZ031
Lake Natron and Engaruka basin


IBA Criteria

Year of most recent IBA criteria assessment: 2001

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Yellow-necked Francolin Pternistis leucoscepus LC resident 2000 present A3
Lesser Flamingo Phoeniconaias minor NT breeding 1994 500,000 breeding pairs A1, A4i
Black-faced Sandgrouse Pterocles decoratus LC resident 2000 present A3
Sombre Nightjar Caprimulgus fraenatus LC resident 2000 present A3
Donaldson-Smith's Nightjar Caprimulgus donaldsoni LC resident 2000 present A3
Buff-crested Bustard Lophotis gindiana LC resident 2000 present A3
White-bellied Go-away-bird Criniferoides leucogaster LC resident 2000 present A3
Eastern Chanting-goshawk Melierax poliopterus LC resident 2000 present A3
Von der Decken's Hornbill Tockus deckeni LC resident 2000 present A3
Abyssinian Scimitarbill Rhinopomastus minor LC resident 2000 present A3
Red-and-yellow Barbet Trachyphonus erythrocephalus LC resident 2000 present A3
D'Arnaud's Barbet Trachyphonus darnaudii LC resident 2000 present A3
Black-throated Barbet Tricholaema melanocephala LC resident 2000 present A3
Fischer's Lovebird Agapornis fischeri NT resident 2000 unknown A3
Rosy-patched Bush-shrike Rhodophoneus cruentus LC resident 2000 present A3
Long-tailed Fiscal Lanius cabanisi LC resident 2000 present A3
Taita Fiscal Lanius dorsalis LC resident 2000 present A3
Red-throated Tit Melaniparus fringillinus LC resident 2000 present A3
Grey Wren-warbler Calamonastes simplex LC resident 2000 present A3
Ashy Cisticola Cisticola cinereolus LC resident 2000 present A3
Banded Warbler Sylvia boehmi LC resident 2000 present A3
Kenya White-eye Zosterops flavilateralis LC resident 2000 present A3
Rufous Chatterer Argya rubiginosa LC resident 2000 present A3
Scaly Chatterer Argya aylmeri LC resident 2000 present A3
Northern Pied Babbler Turdoides hypoleuca LC resident 2000 unknown A3
Hildebrandt's Starling Lamprotornis hildebrandti LC resident 2000 present A3
African Grey Flycatcher Bradornis microrhynchus LC resident 2000 present A3
Eastern Violet-backed Sunbird Anthreptes orientalis LC resident 2000 present A3
Purple Grenadier Granatina ianthinogaster LC resident 2000 present A3
Blue-capped Cordon-bleu Uraeginthus cyanocephalus LC resident 2000 present A3
Black-cheeked Waxbill Estrilda charmosyna LC resident 2000 present A3
Steel-blue Whydah Vidua hypocherina LC resident 2000 present A3
Straw-tailed Whydah Vidua fischeri LC resident 2000 present A3
Swahili Sparrow Passer suahelicus LC resident 2000 present A3
Pangani Longclaw Macronyx aurantiigula LC resident 2000 present A3
White-bellied Canary Crithagra dorsostriata LC resident 2000 present A3
A4iii Species group - waterbirds n/a breeding 1994 1,000,000-2,499,999 individuals A4iii

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here


IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2013 high not assessed low
Was the whole site covered? Yes State assessed by unset
Accuracy of information unknown

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Agricultural expansion and intensification livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming happening now small area/few individuals (<10%) moderate to rapid deterioration low
Climate change and severe weather drought likely in long term (beyond 4 years) whole area/population (>90%) moderate to rapid deterioration high
Geological events volcanic eruptions likely in short term (within 4 years) majority/most of area/population (50-90%) slow but significant deterioration medium
Human intrusions and disturbance work and other activities happening now some of area/population (10-49%) moderate to rapid deterioration high
Natural system modifications dams & water management/use - abstraction of surface water (agricultural use) happening now some of area/population (10-49%) moderate to rapid deterioration high

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Little/none of site covered (<10%) No management plan exists but the management planning process has begun Some limited conservation initiatives are in place low
For more information about IBA monitoring please click here

IBA Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Mto wa Mbu GCA Game controlled area 121,470 protected area overlaps with site 0
Loliondo GCA Game controlled area 622,174 protected area is adjacent to site 0
Lake Natron GCA Game controlled area 775,676 protected area overlaps with site 0
Lake Natron Basin Ramsar Site, Wetland of International Importance 224,781 protected area overlaps with site 154,000
Burko O.A. Open area 71,527 protected area overlaps with site 0

Local conservation groups

The local conservation groups below are working to support conservation at this IBA.

Name Year formed
ILKISONGO PASTORAL INITIATIVES (IPI) 1999
For more information on BirdLife's work with Local conservation groups please click here.

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Artificial/Terrestrial -
Wetlands (inland) -
Grassland -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
tourism/recreation -
other -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Lake Natron and Engaruka basin. Downloaded from http://www.birdlife.org on 07/03/2021.