Náttúrufræðingurinn

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Náttúrufræðingurinn - 1992, Qupperneq 13

Náttúrufræðingurinn - 1992, Qupperneq 13
SUMMARY Rare and vagrant birds in Iceland: Nightjars and Swifts* by Erling Ólafsson Icelandic Museum of Natural History P.O.Box 5320, IS-125 REYKJAVÍK Iceland This paper deals with 4 species of va- grant birds in Iceland, belonging to the or- ders Caprimulgiformes and Apodiformes. No species of these orders is indigenous in Iceland. For each species, general information is given, followed by a list of records in Ice- land till the end of 1980, together with dis- cussion and evaluation of the data. The records from 1981-1989 have been pub- lished in annual rare bird reports (see Gunnlaugur Pétursson & Kristinn H. Skarphéðinsson 1983, Gunnlaugur Péturs- son & Erling Ólafsson 1984, 1985, 1986, 1989a, 1989b, Gunnlaugur Pétursson et al. 1991, 1992). The following data are listed: Locality (place, district and county), date or time * Rare and vagrant birds in Iceland. Report 7: Icelandic Museum of Natural History. period, number of birds (if more than one), and, if known, sex (Ó\ 2) and age (imm, ad), if collected the location of specimens, name of observer(s) or refer- ence, if the record is previously published. For some records further discussion or ex- planations are added. The majority of specimens are kept at the Icelandic Mu- seum of Natural History. These are desig- nated by RM (= Reykjavik Museum) and a catalogue number (e.g. RM4043). A single specimen is kept at the Zoological Museum in Copenhagen (ZM) and others in various museums and private collec- tions in Iceland. The species dealt with are: 1. Caprimulgus europaeus. Very rare, on- ly two records, a young bird from ca. 25 October 1933, and an adult male from 17 June 1977. 2. Chordeiles minor. A single record, a young male from 23 October 1955. 3. Apus apus. A fairly common and regu- lar visitor. A minimum of 228 individu- al birds have been recorded till the end of 1989. A few birds are seen every year (Fig. 3). The year 1980 was excep- tional, as an unusually large flock, 30- 40 birds, was seen on 17 June. Swifts have been recorded within the period 19 April - 24 September, most com- mon in June and fairly common in July (Fig. 4). 4. Apus melba. Very rare, two records from spring and early summer, 15 April 1980 and 16 June 1981. For more details of each record, the reader should refer to the Icelandic text. 91
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