Numbers of wintering Killdeer at Tomales Bay are low which complicates interpretation, but our data indicate a decline, likely reflecting decreases in Killdeer populations found elsewhere in the west (Meehan et al. 2018, Pandolfino and Handel 2018, Stenzel and Page 2018).
See references in
Warnock, N., S. Jennings, J. P. Kelly, E. Condeso, and D. Lumpkin. 2021. Declining wintering shorebird populations at a temperate estuary in California: a 30-year perspective. Ornithological Applications 123:1-19.
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 3 May 2024. We will now analyse and interpret all information, and we will post a preliminary decision on this species’ Red List status on this page on 3 May 2024, when discussions will re-open.
Based on available information, our preliminary proposal for the 2024 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 13 May 2024, after which the recommended categorisations will be put forward to IUCN.
The final 2024 Red List categories will be published on the BirdLife and IUCN websites in October 2024, following further checking of information relevant to the assessments by both BirdLife and IUCN.
in California, USA
Tomales Bay = 81% decrease
Numbers of wintering Killdeer at Tomales Bay are low which complicates interpretation, but our data indicate a decline, likely reflecting decreases in Killdeer populations found elsewhere in the west (Meehan et al. 2018, Pandolfino and Handel 2018, Stenzel and Page 2018).
See references in
Warnock, N., S. Jennings, J. P. Kelly, E. Condeso, and D. Lumpkin. 2021. Declining wintering shorebird populations at a temperate estuary in California: a 30-year perspective. Ornithological Applications 123:1-19.
The Central American Waterbird Census (van Dort et al. 2023) found a moderate decrease (-16%) over the period 2012–2020 during the winter period in southern Mexico and Central America. This is not peer-reviewed but can be found here https://www.researchgate.net/publication/375086778_The_Central_American_Waterbird_Census_2011_2020. The range map seems fine, although the species is an occasional breeder in Central America and Colombia (Sequeda-Zuleta 2021: https://sao.org.co/publicaciones/boletinsao/30_1n2/BS2021-04.pdf, and van Dort 2019: https://scientiahondurensis.files.wordpress.com/2020/01/van-dort-2019.pdf.)
It is not a common and abundant shorebird in Colombia but is currently breeding in Colombia in the Andes and Pacific coast: Residencia y nuevos sitios de reproducción del chorlito colirrojo(Charadrius vociferus. Charadriiforme: Charadriidae) en laSabana de Bogotá, Colombia.https://www.researchgate.net/publication/370324933_httpasociacioncolombianadeornitologiaorgrevista-ornitologia-colombiana_Ornitologia_Colombiana_Articulo_1
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 3 May 2024. We will now analyse and interpret all information, and we will post a preliminary decision on this species’ Red List status on this page on 3 May 2024, when discussions will re-open.
Preliminary proposal
Based on available information, our preliminary proposal for the 2024 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 13 May 2024, after which the recommended categorisations will be put forward to IUCN.
The final 2024 Red List categories will be published on the BirdLife and IUCN websites in October 2024, following further checking of information relevant to the assessments by both BirdLife and IUCN.