||Foudia flavicans Newton, 1865
||Rodrigues Fody, Yellow Fody
||Foudi de Rodrigues
||del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
||12-13 cm. Small, forest weaver. Yellow head, neck and breast, with orange at front of face. Dark brown back, wings and tail, streaked with buff. Voice Fast chip chip and deeper chuk chuk. Bold, melodious song given by both sexes. Hints Arboreal, sometimes in flocks.
|Red List Category & Criteria:
||Butchart, S. & Symes, A.
||Jones, C., Tatayah, V. & Steward, P.
||Benstead, P., Ekstrom, J., McClellan, R., Pilgrim, J., Shutes, S., Symes, A., Taylor, J., Warren, B., Westrip, J.
This species has been downlisted from Vulnerable following evidence that its population is larger than previously thought and increasing rapidly. It is listed as Near Threatened because it occupies a tiny range and remains susceptible to stochastic events and the impacts of introduced species, such that it could qualify as threatened within one or two generations.
|Previously published Red List assessments:|
- 2013 – Near Threatened (NT)
- 2012 – Vulnerable (VU)
- 2008 – Vulnerable (VU)
- 2006 – Vulnerable (VU)
- 2004 – Vulnerable (VU)
- 2000 – Vulnerable (VU)
- 1996 – Vulnerable (VU)
- 1994 – Vulnerable (VU)
- 1988 – Threatened (T)
|Range Description:||Foudia flavicans, having once been abundant on Rodrigues, Mauritius, declined drastically to 5-6 pairs in 1968. By April 1983, it had recovered to c.110 birds on the island's northern slopes. Populations have increased in line with the recovery and expansion of native and exotic woodland (C. Jones in litt. 2000, Safford 2001). In 1999, the population was estimated at a minimum of 334 pairs and 911 individuals (Impey 1999, 2002), and maximum of 500 pairs and 1,200 individuals (C. Jones in litt. 2000), but by 2010 the total population had risen extremely rapidly and numbered up to 8,000 individuals (C. Jones in litt. 2013). Considering uncertainties and difficulties in estimating this species's population, the total number of individuals is now estimated at 4,000-8,000 (C. Jones in litt. 2013, P. Steward in litt. 2013).|
|♦ Continuing decline in area of occupancy (AOO):||No|
|♦ Extreme fluctuations in area of occupancy (AOO):||No||♦ Estimated extent of occurrence (EOO) - km2:||12|
|♦ Continuing decline in extent of occurrence (EOO):||No||♦ Extreme fluctuations in extent of occurrence (EOO):||No|
|♦ Number of Locations:||11-100||♦ Continuing decline in number of locations:||No|
|♦ Extreme fluctuations in the number of locations:||No||♦ Lower elevation limit (metres):||20|
|♦ Upper elevation limit (metres):||390|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||Following a rapid increase, in 2010 the population was estimated to number a maximum of 8,000 individuals, based on the relative abundances of this species and Rodrigues Warbler Acrocephalus rodericanus (C. Jones in litt. 2010, 2013). Considering uncertainties and difficulties inherent in estimating this species's population size, the estimate is put at 4,000-8,000 individuals (C. Jones in litt. 2013, P. Steward in litt. 2013), assumed to include c.2,600-5,400 mature individuals.|
Trend Justification: Populations have increased in line with the recovery and expansion of native and exotic woodland (C. Jones in litt. 2000, Safford 2001). Surveys in 1999 and 2010 followed the same methods and the comparison of the estimates of 334 (1999) and 804 pairs (2010) gives an average annual growth rate of c.8% (assuming the age structure or proportion of non-breeders remained similar) (P. Steward in litt. 2013). However, it has been noted that previous surveys were conducted in the non-breeding season when the species may be only half as detectable as when breeding, and thus are likely to have underestimated numbers (C. Jones in litt. 2013). Consequently the total population size in 2010 is thought to be much larger than the 1,700 individuals estimated by Norfolk (2010). The population is still increasing as the amount of forest cover increases in area and trees increase in size (C. Jones in litt. 2013).
|Current Population Trend:||Increasing|
|♦ Number of mature individuals:||2600-5400||♦ Continuing decline of mature individuals:||No|
|♦ Extreme fluctuations:||No||♦ Population severely fragmented:||No|
|♦ No. of subpopulations:||2-100||♦ Continuing decline in subpopulations:||No|
|♦ Extreme fluctuations in subpopulations:||No||♦ All individuals in one subpopulation:||No|
|♦ No. of individuals in largest subpopulation:||1-89|