Azpiroz & Rodriguez-Ferraro MS-536.Fm
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SHORT COMMUNICATIONS ORNITOLOGIA NEOTROPICAL 17: 445–451, 2006 © The Neotropical Ornithological Society NOTEWORTHY OBSERVATIONS OF THE BIRDS OF FALCÓN STATE, NORTHWESTERN VENEZUELA Adrián B. Azpiroz & Adriana Rodríguez-Ferraro Department of Biology, R223, University of Missouri-St. Louis, One University Boulevard, St. Louis, MO 63121, USA. E-mail: [email protected] Observaciones relevantes de las aves del Estado Falcón, noroeste de Venezuela. Key words: Breeding, distribution, Falcón state, new records, Venezuela. INTRODUCTION guaná. Bosque (1984) conducted the only extensive study on the avifauna of this Penin- The state of Falcón (24,800 km2), located in sula by focusing on the structure and diversity northwestern Venezuela (Fig. 1), has a warm of bird communities inhabiting arid zones. and humid tropical climate. The state is Some bird inventories have been also carried mainly covered by xerophytic vegetation with out at the Cerro Santa Ana (Bisbal 1990) and a few areas of humid forests largely restricted at the Laguna de Boca de Caño Wildlife Ref- to mountain ranges in central (Sierra de San uge (Bisbal 2001). Luis, 1550 m) and southern Falcón (Sierra de In the Neotropics there is a great need to Churuguara, 1000 m), as well as at the center improve the current knowledge of avian dis- of the Paraguaná Peninsula (Cerro Santa Ana, tributions, since bird distributional patterns 850 m) (Klein 1999). Falcón state also has an are key components of many research and extensive coastal line of c. 685 km (Klein conservation initiatives (Rojas-Soto & Oli- 1999). Forests, arid scrub and coastal areas veras de Ita 2005). In this article, we provide provide a wide array of habitats for both resi- range extensions and new breeding records dent and migratory bird species. for 15 birds of Falcón state. From an ornithological perspective, Fal- cón state has been considerably neglected. METHODS Broad information on Falcón’s birdlife can be found in the general works of Phelps & We conducted five one-week field trips (May Meyer De Schauensee (1979) and Hilty 2003, June 2004, September 2004, and (2003). However, very few detailed studies of November 2004 and May 2005) to several Falcon’s avifauna have been conducted, and areas of Falcón state (Fig. 1) (from north to most of these have focused on the birds of south). the Paraguaná Peninsula. Barnes & Phelps (1940) compiled the first list of birds for Para- Paraguaná Peninsula. This area is predominantly 445 AZPIROZ & RODRÍGUEZ-FERRARO N Caribbean Sea Boca de Caño Lagoon Pueblo Nuevo VENEZUELA 50 KM Jadacaquiva Adícora Baraived Playa El Pico Buena Vista Los Taques Moruy Cerro Santa Ana Santa Ana Area A Punto Fijo Médanos de Coro N. P. La Vela Coro City El Isiro Dam Area B Sabaneta La Negrita Sierra de San Luis N. P. Curimagua Jácura Area C El Haitón Area D Agua Linda Chichiriviche La Taza Cueva de la Qda. La Misión Del Toro N. P. FIG. 1. Map of Falcón state, indicating sites and areas mentioned in the text. covered by arid scrub, except for deciduous 45”N, 69°37’47”W), west of Coro along the and humid forests along the foothills of the road to Sabaneta (11°15’39”N, 69°59’37”W), Cerro Santa Ana (91,280 ha, 850 m). Within and east of Coro at La Vela (11°27’35”N, the Peninsula we visited Playa El Pico 69°33’59”W) and at El Carrizal (11°28’15”N, (11°51’35”N, 70°17’50”W), Los Taques 69°32’30”W). (11°49’22”N, 70°15’13”W), Punto Fijo (11° 41’48”N, 70°10’36”W), Moruy (11°49’19”N, Sierra de San Luis. Most of this isolated moun- 69°58’55”W), Buena Vista (11°52’30”N, 69° tain range is protected within the Sierra de 56’37”W), Pueblo Nuevo (11°56’53”N, 69° San Luis National Park (20,000 ha, 200–1500 55’15”W), Adícora (11°56’33”N, 69°48’ m). The park includes a wide variety of vege- 30”W), and arid scrub patches surrounding tation types that ranges from deciduous for- the Boca de Caño lagoon (12°01’37’N, ests to premontane humid forests. We visited 69°51’27’W) and the road to Baraived the Sierra de San Luis National Park and (11°50’40”N, 69°50’17”W). made observations at two localities: Curi- magua (11°10’31”N, 69°40’20”W) and El Surroundings of the city of Coro. Although arid Haitón (a few km west of Curimagua). scrub is also the main vegetation type in this area, the presence of many human settle- Sierra de Churuguara. The major vegetation ments (including Falcón’s capital city, Coro, type along the sierra is the tropical dry forest, 245,000 inhabitants) has resulted in extensive but humid forests are also found at higher habitat modification. This area also includes elevations. We made observations on the an artificial water body, the El Isiro dam (19 roads from Jácura (11°04’00”N, 68°51’00”W) km2). We conducted observations south of to La Taza (10°51’01”N, 69°10’07”W) and Coro along the road to La Negrita (11°18’ from Churuguara (10°48’56”N, 69°32’10”W) 446 SHORT COMMUNICATIONS to Barquisimeto, Lara state, and at the Cueva White-rumped Sandpiper (Calidris fuscicollis). de la Quebrada del Toro National Park (8500 This is an uncommon transient during Sep- ha, 400-1100 m). tember–December and March–May (Hilty Species were recorded visually or acousti- 2003). In Falcón state, the species was previ- cally and in many cases photographic docu- ously reported only at Chichiriviche (Hilty mentation and tape recordings were obtained. 2003). We observed a group of seven individ- Four mist nets were operated during one day uals in breeding plumage at Playa El Pico on 7 (06:00–10:00 h and 16:00–18:30 h) at the and 8 June 2004. These are the first records Paraguaná Peninsula and near the city of Coro for the Paraguaná Peninsula and also repre- during the field trips conducted from June sent the latest spring observations reported 2004 to May 2005. for Venezuela, or oversummerers. RESULTS AND DISCUSSION Plain-breasted Ground-dove (Columbina minuta). One male was mist-netted in a patch of arid We documented the presence of 11 species scrub surrounding the Boca de Caño lagoon outside their previously reported distribu- on 16 November 2004. This species is widely tional range and gathered additional informa- distributed in Venezuelan lowlands but, in tion on the breeding biology of four other Falcón it was previously reported only from taxa. Cerro Misión, in the south-eastern corner of the state. It inhabits open areas and borders of Range extensions dry forests (Hilty 2003). The species was not Southern Lapwing (Vanellus chilensis). It is a previously recorded in coastal arid scrub. The widespread and common resident species bird was captured after a strong storm which throughout the lowlands of most of the might explain the presence of this bird out- northern half of Venezuela (Hilty 2003). In side its normal habitat and known range. Falcón, however, sightings are restricted to the easternmost part of the state (Hilty 2003). Scarlet-fronted Parakeet (Aratinga wagleri). This A couple of birds were observed along the parrot inhabits humid mountain forests, road to La Negrita, a few km south of El Isiro where it is a fairly common resident (Hilty dam on 22 May 2003. At this same site, one 2003). Previous records for Falcón state were individual was seen and another one heard on restricted to the central mountains at Sierra de 9 June 2004. Two more individuals were San Luis (Hilty 2003). A small flock was observed in an area of temporary ponds in La observed near La Taza, within the Cueva de la Vela de Coro, along the road to Morón on 11 Quebrada del Toro National Park in the east- June 2004. On 8 and 9 May 2005, two individ- ern portion of Sierra de Churuguara, on 14 uals were observed feeding at the border of an June 2004. According to local residents the artificial lagoon between Pueblo Nuevo and species is common and breeds in the area. Jadacaquiva in the Paraguaná Peninsula. Also This observation puts the species in an addi- on May 2005, several individuals were seen at tional mountain range within Falcón, one that three different sites near Coro: Isiro Dam, lies within a distributional gap for the species Médanos de Coro National Park, and 20 km (between the Sierra de San Luis and the west of the city along the road to Maracaibo. Coastal Cordillera). All these records come from a general area for which Hilty (2003) considers the presence of Dark-billed Cuckoo (Coccyzus melacoryphus). this species to be uncertain. This is a common resident in the llanos and 447 AZPIROZ & RODRÍGUEZ-FERRARO open areas in the northeastern coast of Vene- second growth patch between Curimagua and zuela. Austral migrants have also been El Haitón within the Sierra de San Luis. reported from these regions from May to These observations represent a westward October (Hilty 2003). One individual was expansion of about 150 km in northwestern mist-netted in a patch of arid scrub in the sur- Venezuela. roundings of La Negrita on 28 June 2005. This is the first record of the species in north- Bearded Bellbird (Procnias averano). In Falcón western Venezuelas arid belt and the second the bird was previously known only from for Falcón state (Hilty 2003). Sierra de San Luis area (Hilty 2003), where we recorded two singing males at El Haitón on Great Horned Owl (Bubo virginianus).