5 thoughts on “Puerto Rican Bullfinch (Melopyrrha portoricensis): Revise global status?”
Although it does not affect the proposed population band, there would seem a problem with the calculation here:
“The population has been estimated to number 30,000-37,000 pairs (Nytch et al. 2015); this roughly converts to 40,000-49,000 mature individuals.”
Surely the minimum number of mature individuals, given 30,000 pairs, is 60,000, even assuming no non-breeding birds? Or are the estimates of Nytch et al. assumed to include immature birds as part of pairs?
Many thanks to everyone who has contributed to this discussion. We greatly appreciate the time and effort invested in commenting. The window for consultation is now closed and we are unable to accept any more comments until 18 July 2022. We will now analyse and interpret the new information, and we will post a preliminary decision on this species’ Red List status on this page on 18 July 2022, when discussions will re-open.
Based on available information, our preliminary proposal for the 2022.2 Red List would be to adopt the proposed classifications outlined in the initial forum discussion.
There is now a period for further comments until the final deadline on 24 July 2022, after which the recommended categorisations will be put forward to IUCN. The final 2022.2 Red List categories will be published on the BirdLife and IUCN websites in December 2022, following further checking of information relevant to the assessments by both BirdLife and IUCN.
Many thanks to everyone who has contributed to this discussion. We greatly appreciate the time and effort invested in commenting. The window for consultation is now closed and we are unable to accept any more comments. We will post a final decision on this species’ Red List status on this page on 1 August 2022.
Recommended categorisation to be put forward to IUCN
The final categorisation for this species has not changed. Puerto Rican Bullfinch is recommended to be listed as Vulnerable under Criterion B1ab(ii,iii,iv,v).
Many thanks for everyone who contributed to the 2022.2 GTB Forum process. The final 2022.2 Red List categories will be published on the BirdLife and IUCN websites in December 2022, following further checking of information relevant to the assessments by both BirdLife and IUCN.
Although it does not affect the proposed population band, there would seem a problem with the calculation here:
“The population has been estimated to number 30,000-37,000 pairs (Nytch et al. 2015); this roughly converts to 40,000-49,000 mature individuals.”
Surely the minimum number of mature individuals, given 30,000 pairs, is 60,000, even assuming no non-breeding birds? Or are the estimates of Nytch et al. assumed to include immature birds as part of pairs?
Many thanks to everyone who has contributed to this discussion. We greatly appreciate the time and effort invested in commenting. The window for consultation is now closed and we are unable to accept any more comments until 18 July 2022. We will now analyse and interpret the new information, and we will post a preliminary decision on this species’ Red List status on this page on 18 July 2022, when discussions will re-open.
Preliminary proposal
Based on available information, our preliminary proposal for the 2022.2 Red List would be to adopt the proposed classifications outlined in the initial forum discussion.
There is now a period for further comments until the final deadline on 24 July 2022, after which the recommended categorisations will be put forward to IUCN. The final 2022.2 Red List categories will be published on the BirdLife and IUCN websites in December 2022, following further checking of information relevant to the assessments by both BirdLife and IUCN.
Many thanks to everyone who has contributed to this discussion. We greatly appreciate the time and effort invested in commenting. The window for consultation is now closed and we are unable to accept any more comments. We will post a final decision on this species’ Red List status on this page on 1 August 2022.
Recommended categorisation to be put forward to IUCN
The final categorisation for this species has not changed. Puerto Rican Bullfinch is recommended to be listed as Vulnerable under Criterion B1ab(ii,iii,iv,v).
Many thanks for everyone who contributed to the 2022.2 GTB Forum process. The final 2022.2 Red List categories will be published on the BirdLife and IUCN websites in December 2022, following further checking of information relevant to the assessments by both BirdLife and IUCN.