Atlantic Royal Flycatcher (Onychorhynchus swainsoni): downlist from Vulnerable to Near Threatened?

This discussion was first published as part of the 2016 Red List update. At the time a decision regarding its status was pended, but to enable potential reassessment of this species as part of the 2018 Red List update this post remains open and the date of posting has been updated.

BirdLife species factsheet for Atlantic Royal Flycatcher

Atlantic Royal Flycatcher is endemic to south-eastern Brazil, found in the states of Rio de Janeiro, São Paulo and Paraná. The species is listed as Vulnerable under A2c+3c+4c; B1ab(i,ii,iii,iv,v). The population is estimated to number 600-1,700 mature individuals and is suspected to be declining rapidly, in line with rates of habitat loss within the species’s range. The species’s Extent of Occurrence (EOO) was previously estimated at 12,000 km2 but has been recalculated at 288,000 km2 following revisions to the method of calculation.

In the Brazilian Red List assessment for birds (MMA 2014) this species is listed as Near Threatened however no information is available to indicate which criterion the species approaches for NT status. Near Threatened status on the Brazilian Red List assessment for birds would suggest that the population is not experiencing a population decline of >30% in 11 years (three generations) and that the species’s EOO is either not <20,000 km2 or that the population is not severely fragmented with <10 locations and there is not a continuing decline in EOO/AOO/area, extent or quality of habitat/number of locations or subpopulations/number of mature individuals.

Up-to-date information is requested on the species’s population trend and geographic range. Confirmation that the species’s population has not/is not experiencing a decline of >30% in 10 years or three generations would likely qualify the species for downlisting to Near Threatened under criterion A2c+3c+4c or Least Concern. Comments on the proposed downlisting are welcome.
References:

MMA (2014) Lista Nacional Oficial de Espécies da Fauna Ameaçadas de Extinção. Portaria No 444, de 17 de dezembro de 2014. Diário Oficial da União – Seção 1. Nº 245, quinta-feira, 18 de dezembro de 2014.

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6 Responses to Atlantic Royal Flycatcher (Onychorhynchus swainsoni): downlist from Vulnerable to Near Threatened?

  1. James Westrip (BirdLife) says:

    Based on available information, our proposal for the 2016 Red List would be to pend the decision on this species and keep this discussion open until 2017, while leaving the current Red List category unchanged in the 2016 update.

    Final 2016 Red List categories will be published on the BirdLife and IUCN websites in early December, following further checking of information relevant to the assessments by both BirdLife and IUCN.

  2. Hannah Wheatley (BirdLife) says:

    Preliminary proposals

    Based on available information, our proposal for the 2017 Red List would be to pend the decision on this species and keep this discussion open until 2018, while leaving the current Red List category unchanged in the 2017 update.

    Final 2017 Red List categories will be published on the BirdLife and IUCN websites in early December, following further checking of information relevant to the assessments by both BirdLife and IUCN.

  3. Rachel says:

    Does any of this information take into account how long the birds live? I am not sure what process is followed, but i think their lifespan could be of importance. How long do they live on average?

    • James Westrip (BirdLife) says:

      Thanks for the comment. Yes we do take this into account already. When assessing the magnitude of a population reduction we look at a period of three generations (or 10 years, whichever is the longer) to make sure procedures are standardised across species. As mentioned above, the time period for this species is c.11 years.

  4. Claudia Hermes (BirdLife International) says:

    Following the recalculation of the EOO as 288,000 km2, the species does no longer approach the threshold for Vulnerable under criterion B1a,b(i,ii,iii,iv,v). The rate of forest loss within its range over three generations (c.11 years) is only 1.7%. This suggests that the population does not experience a decline >30% over three generations, and hence cannot be listed as Vulnerable under criterion A2c+3c+4c. However, the population is currently estimated at 600-1700 mature individuals in 2-100 subpopulations and declining (BirdLife International 2018). Consequently, the species would qualify for being listed as Vulnerable under criterion C2a(i).

  5. Claudia Hermes (BirdLife International) says:

    Based on available information, our preliminary proposal for the 2018 Red List would be to list:
    Atlantic Royal Flycatcher as Vulnerable under criterion C2a(i); D.
    There is now a period for further comments until the final deadline in mid-July, after which the recommended categorisations will be put forward to IUCN.
    Please note that we will then only post final recommended categorisations on forum discussions where these differ from the initial proposal.
    The final 2018 Red List categories will be published on the BirdLife and IUCN websites in November, following further checking of information relevant to the assessments by both BirdLife and IUCN.

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