The buff-rumped warbler (Myiothlypis fulvicauda) is a New World warbler that is resident from Honduras south to northwestern Peru and disjunctly in the western Amazon. It is found in forests at up to 1500 m altitude, always near water.

The pair builds a bulky domed nest with a side entrance on a sloping bank next to a stream or path, and the female lays two white eggs which are incubated for 16–17 days with another 13–14 days to fledging.

The buff-rumped warbler is 13-13.5 cm long and weighs 14.5 g. The nominate race M. f. fulvicauda of western Amazonia in Colombia, Ecuador, Peru and Brazil is dark olive-brown above with a grey head, buff supercilium, and the conspicuous rich buff rump and upper tail that give this species its English and scientific names. The lower half of the tail is blackish. The underparts are whitish with some buff on the flanks. The sexes are similar, but the young bird is browner on the upperparts, head and breast, and its rump is paler.

There are five other subspecies.

M. f. semicervina, is found in the Chocó from eastern Panama to north-western Peru. It is similar to fulvicauda, but the buff area of the tail is larger and paler, and the buff on the flanks is more extensive.

M. f. motacilla, from the Magdalena Valley in Colombia, is similar to semicervina, but the buff area of the tail is paler, and upperparts more olive.

M. f. leucopygia, from the Caribbean slope in Central America is a distinctive form, with a much paler buff rump, a white supercilium, dark legs, and dark spotting on the breast.

M. f. veraguensis, from the Pacific slope in Central America is like leucopygia, but less spotted and with a somewhat darker rump.

M. f. significans of south-eastern Peru and northern Bolivia has a less extensive buff rump than other subspecies, and olive upperparts.

This is a common species, easily seen and identified as it hops on the ground, pumping and swinging its broad tail constantly. The buff-rumped warbler primarily feeds on insects, spiders and other small invertebrates, taken on the ground or in flight in open areas along the banks of streams, puddles, roadsides or tracks. Pairs defend their linear feeding territories along a stretch of stream throughout the year.

The call note of the buff-rumped warbler is a hard tschik like northern waterthrush, and the male's song is a warble followed by a series of 8-15 ringing chew notes. The female may give a soft reply.

Buff-rumped Warbler
Date Location Count
2020-03-20 06:19PN Guanacaste--Estación Biológica Pitilla2
2020-03-17 11:30Las Bromelias Lodge2
2020-03-18 10:27Sensoria2
2020-03-11 06:00Celeste Mountain Lodge2
2020-04-01 14:21Catarata Bijagua1
2020-03-11 06:28Puerto Viejo Sarapiqui2
2020-03-22 11:52Bijagua--Tenorio Lodge1
2020-03-15 06:08La Selva (OTS Reserve)--Road to Puerto Viejo River1
2020-03-20 08:04Chilamate Rainforest Eco Retreat1
2020-03-16 06:00Selva Verde Lodge1
2020-03-12 07:36La Selva (OTS Reserve)--Sendero Zompopa1
2020-03-30 15:16Canaan Farm2
2020-03-16 05:58La Selva (OTS Reserve)2
2020-03-16 10:34Tirimbina Rainforest Center1
2020-03-13 01:05Tirimbina--Field Station2
2020-03-09 15:46Eco Centro Danaus4
2020-03-15 08:30Arenal--Mirador El Silencio1
2020-03-20 08:17Arenal Misticopark (Hanging Bridges)3
2020-03-15 14:22Arenal Oasis Eco Lodge1
2020-03-15 06:21Laguna de Arenal--dam area1
2020-03-13 15:28Arenal--Peninsula road (shortcut to dam)1
2020-03-17 05:39Arenal Mundo Aventura2
2020-03-25 11:48Arenal Observatory Lodge2
2020-03-20 14:56Arenal Observatory Lodge--Sendero Catarata1
2020-04-01 05:53La Unión, Guápiles2
2020-03-30 15:00Laguna Hule3
2020-03-15 07:36Sky Adventures - Arenal Park1
2020-03-29 08:00El Congal Rainforest2
2020-03-14 07:19Albegue del Socorro2
2020-03-25 08:03Virgen del Socorro2
2020-03-16 09:30Bosque Eterno de Los Niños--Poco Sol2
2020-03-18 07:05Reserva El Tapir (old butterfly garden)2
2020-03-20 08:00PN Braulio Carrillo--Quebrada González4
2020-03-17 14:44PN Braulio Carrillo--Quebrada González (Las Palmas)1
2020-03-29 09:54Río Guanche--Bosque2
2020-03-19 06:12Camino a la Reserva Alberto Manuel Brenes2
2020-03-15 05:33Rancho Naturalista1
2020-03-23 08:26La Mina near Rancho Naturalista1
2020-03-12 10:00Aserradero ARAVAR1
2020-03-22 13:27San Antonio de Platanillo--near Rancho Naturalista1
2020-03-26 05:40Rancho Naturalista--Cerro El Silencio
2020-03-21 08:06Hotel Quelitales2
2020-03-12 05:45Reserva El Copal2
2020-03-23 10:14Puente Purisil1
2020-03-14 08:37PN Tapanti--Sector Tapanti2
2020-03-09 06:00PN Carara--Puente Río Tárcoles4
2020-03-16 06:45PN Carara--main headquarters1
2020-03-19 13:45PN Carara--Sendero Quebrada Bonita4
2020-03-19 05:47Villa Lapas4
2020-03-08 06:36Macaw Lodge2
2020-03-07 07:11Sendero Principal Cerro Chirripó2
2020-03-18 06:39Río Chirripó Retreat (restricted access)2
2020-03-19 05:28Hot Springs Lodge and Community1
2020-03-22 05:56Esquipulas (town)1
2020-03-14 05:33Tajo Las Nubes1
2020-03-14 06:07Quebrada Arroyo — Road2
2020-03-22 05:05Los Cusingos1
2020-03-07 05:35PN La Amistad-Sector Pittier1
2020-03-16 06:52Canopy Lodge2
2020-03-06 16:06ASOPROLA1
2020-03-13 05:18ZP Las Tablas--Amistad Lodge2
2020-03-09 08:00Mount Totumas Cloud Forest Reserve1
2020-03-08 08:25Willie Mazu1
2020-03-15 11:12Bosque Protector Palo Seco1
2020-04-03 17:45Tinamou Cottage1
2020-04-03 05:05Wilson Botanical Garden (OTS Las Cruces)--Wilson/Gamboa forest2
2020-03-31 08:12Paraíso Birding Paradise2
2020-03-15 06:29Drake Bay--Hiking Trail2
2020-03-11 10:14PN Darién--Sendero a Rancho Frío1
2020-03-23 05:52Bosque del Rio Tigre Lodge1
2020-03-11 07:00Finca Velásquez2
2020-03-14 14:15RNA Proaves Arrierito Antioqueño (Chestnut-capped Piha Reserve)1
2020-03-27 14:30RNA Proaves Arrierito Antioqueño--Casa1
2020-03-07 07:49Restaurante El Palacio De Los Frijoles, Cocorna1
2020-03-07 15:54RNA Paujil (Dept. Boyaca)1
2020-03-16 08:35RNA El Paujil3
2020-03-19 09:30RN Cañon del Río Claro2
2020-03-08 16:44RN Bellavista1
2020-03-09 05:58La Victoria1
2020-03-31 06:00PNN Tatamá--Camino Montezuma5
2020-03-31 07:17Camino Montezuma--Río Claro2
2020-03-31 05:45Camino Montezuma--Montezuma Rainforest Lodge2
2020-03-08 06:46Distrito de Manejo Integrado Agualinda1
2020-03-20 08:20Ciudad Perdida Falan5
2020-03-23 05:40Hotel Tinamú Birding Nature Reserve1
2020-03-16 07:00Humedal El Hato2
2020-03-08 08:16Laguna El Tabacal2
2020-03-13 08:52Universidad Tecnológica de Pereira--Puente del Bloque L2
2020-03-07 07:00Parque de La Vida
2020-03-14 06:15PN Los Tunos--Bosque Nuboso1
2020-04-04 09:34Complejo Lagunar--Picaleña2
2020-03-18 06:00Parque Verde y Agua1
2020-03-07 14:00RN Victoria--Finca San Antonio1
2020-03-14 05:45RN Rio Bravo--Carretera8
2020-03-15 11:40RN Laguna de Sonso1
2020-03-15 06:26RN Forestal Bosque de Yotoco1
2020-03-19 06:07Balneario Valparaiso3
2020-03-18 05:56RN San Cipriano-Escalerete3
2020-03-09 06:25Balneario La Delfina7
2020-03-18 10:52Carretera Vieja Buenaventura--Km 80-1152
2020-03-18 06:56RN Aguaclara4
2020-03-14 06:59Bajo Anchicayá--Zona de Cascada7
2020-03-15 05:55Bajo Anchicayá - Ladrilleros7
2020-03-16 08:45Carretera Vieja Buenaventura--Km 60-766
2020-03-21 06:27Via Antigua a Buenaventura4
2020-03-15 15:44Alto Anchicayá10
2020-03-24 07:46Finca Ronda Gyrola1
2020-03-17 08:34Alto Anchicayá - El Descanso (Doña Dora)2
2020-03-26 06:30Parque Multicentro--Ruta del Sirirí2
2020-03-18 07:07RN El Pangán1
2020-03-30 08:00Finca Mi Cumita2
2020-03-20 06:38Nanegal--vicinity1
2020-03-15 06:47Rio Silanche Bird Sanctuary1
2020-03-31 08:10Rancho Suamox2
2020-03-15 06:50San Jorge de Milpe2
2020-03-08 06:48Mindo--Casa Divina Lodge2
2020-03-24 11:44Finca San Carlos1
2020-03-15 18:39Reserva Maycu1