Designed by Paul Smith 2006. This website is copyrighted by law.
Material contained herewith may not be used without the prior written permission of FAUNA Paraguay.
Material on this page was provided by Paul Smith, Sylvia Qu, Roberto Derna, Regis Nossent and Alberto Esquivel and is used with their permission.
GOLDEN-CROWNED WARBLER Basileuterus culicivorus
Spend more than a few minutes in the Atlantic forest and if you haven't come across a Golden-crowned Warbler then it won't be long before one comes across you. This pushy little character is probably the most numerous and conspicuous humid forest inhabitant, roving in noisy bands and investigating the onlooker with chirps of annoyance that you have had the gall to interrupt their foraging schedule. Active and acrobatic, they hop through the foliage at all levels, investigating cracks in bark, dead leaves and just about anything else that might be hiding a tasty morsel of food, characteristically flicking the wings and cocking the tail as they pass by. They act as a sort of sentinel for the birds of the forest, being the first to raise the alarm that a birdwatcher is on the loose - usually frustratingly when you are stealthily sneaking up on something rare and unusual! But despite their abundance, they really are a pretty little bird with bags of energy, and you can't help but find them endearing as they accompany you along the forest trails.
Click on the images to enlarge them.
FIGURE 1 - (FPAVE724PH) Adult, Salto del Monday, Departamento Alto Paraná (Paul Smith October 2010).
FIGURE 2 - (FPAVE725PH) Adult wing-flicking in alarm, PROCOSARA, PN San Rafael (Sylvia Qu May 2008).
FIGURE 3 - (FPAVE726PH) Adult, PROCOSARA, PN San Rafael (Sylvia Qu June 2008).
FIGURE 4 - (FPAVE727PH) Adult ventral, PROCOSARA, PN San Rafael (Paul Smith September 2007).
FIGURE 5 - (FPAVE728PH) Adult, Hotel Tirol, Departamento Itapúa (Regis Nossent June 2005).
FIGURE 6 - (FPAVE729PH) Adult upperwing, Hotel Tirol, Departamento Itapúa (Paul Smith June 2005).
FIGURE 7 - (FPAVE730PH) Adult underwing, PROCOSARA, PN San Rafael (Paul Smith March 2007).
FIGURE 8 - (FPAVE731PH) Recently fledged juvenile, PROCOSARA, PN San Rafael (Alberto Esquivel October 2004)
FIGURE 9 - (FPAVE732PH) Adult incubating, PROCOSARA, PN San Rafael (Alberto Esquivel October 2004).
FIGURE 10 - (FPAVE733PH) Nest, Hotel Tirol, Departamento Itapúa (Paul Smith September 2005).
FIGURE 11 - (FPAVE3347PH) Adult, Encarnación Departamento Itapúa (Roberto Derna August 2011).
VIDEO A - (FPAVE734VI) Adult, Salto del Monday, Departamento Alto Paraná (Paul Smith October 2010).
VIDEO B - (FPAVE4210VI) Distraction display, Hotel Tirol, Departamento Itapúa (Paul Smith October 2016).
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"WHITE-BELLIED WARBLER" "Basileuterus hypoleucus"
In the northern Oriental region of Paraguay, this little known warbler is fairly common in subhumid forest. It is similar in many respects to the well-known and widespread Golden-crowned Warbler of the humid forest. So similar are they in fact that they respond to each others call and hybridise wherever they meet. Recent molecular studies have suggested that there is likely a reason for this - they are conspecific! In 2011 the SACC approved a proposal to merge the two species. See:
Smith P 2011 Treat Basileuterus culicivorus as conspecific with Basileuterus hypoleucus. SACC Proposal 493.
Click on the images to enlarge them.
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FIGURE 1 - (FPAVE2735PH) Adult lateral, Arroyo Tagatiya, Departamento Concepción (Paul Smith August 2011).
FIGURE 2 - (FPAVE2736PH) Adult frontal, PN Serrania San Luis, Departamento Concepción (Paul Smith August 2011).
FIGURE 3 - (FPAVE2737PH) Adult rear, Arroyo Tagatiya, Departamento Concepción (Paul Smith August 2011).
Basileuterus culicivorus
1 (FPAVE735RE) Call and song recorded PROCOSARA, PN San Rafael (Paul Smith March 2007).
2 (FPAVE736RE) Song recorded Muxfeldt, Departamento Alto Paraná (Myriam Velázquez October 2001).
Click the links to hear the calls. Longer versions of this call can be downloaded from the Paraguay page of our partner website www.xeno-canto.com - the largest collection of freely downloadable Neotropical bird calls available online.