. La Canadian field-naturaliste. Histoire naturelle ; sciences naturelles. 2007 SiiAiii.k., iTAi : Wiim.-ivxci.i) l'IMS en Pkaikh Norihi-.kn- : et Pakki.et 49 70 60 50 C 40 30 20 10 Inconnu D Nonbrccding ^â saison Saison saison de reproduction. 901- 1911- 1921- 1931- 1941- 1951- 1961- 1971- 1981- 1991- 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 Figure 1. Records d'Ibis à face blanche occurrences dans le Dakota du durinj ; le xxe siècle, bv décennie. par R. C. Fields (Houston et Houston, 1974). Les premières observations de cinq comtés (Bottineau, Foster, Mercer. Pierce, et Ward) a eu lieu récemment, withi

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. The Canadian field-naturalist. Natural history; Sciences naturelles. 2007 SiiAiii.k iTAi, .: Wiim.-ivxci.i) Ims in Norihi-.kn Pkaikh-: and Pakki.and 49 70 60 50 C 40 30 20 10 D Unknown Season ^Nonbrccding Season â Breeding Season. 901- 1911- 1921- 1931- 1941- 1951- 1961- 1971- 1981- 1991- 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 Figure 1. Records of White-faced Ibis occurrences in North Dakota durinj; the twentieth century, bv decade. by R. C. Fields (Houston and Houston 1974). The first sightings in five counties (Bottineau, Foster, Mercer. Pierce, and Ward) occurred recently, within 2001-2002. To date, there are 21 records of nesting activity in North Dakota (Table 2). The first nest was reported by R. A. Schmidt and R. N. Randall in 1978 (Serr 1978: Schmidt 1980a). From 1978 to 2003. nests have been reported in ten of the 26 years, with the majority occur- ring between 2000 and 2003. Nests or nesting activity have been reported in each of the four recent years from 2000 to 2003. The number of nests discovered within an individual wetland varied from one to 31. All 21 nesting observations were recorded in June, July, or August. Observations in June indicated that nest- ing had been initiated in May. By August, young or fledglings were observed. Nesting ibises have been observed in eight of the 53 counties (Table 2, Figure 3). Most nesting activity was recorded in Burleigh and Kidder counties (Table 2). Of the ten known wetlands that have contained nesting ibises, six are federally owned; two involve a mixture of federal, state, and/or private ownerships; and two are privately owned. The ibis has been recorded on a Breeding Bird Sur- vey route in North Dakota in only one year since the survey's inception in 1966. On 10 June 1999, three individual ibis were reported by H. C. Talkington (Mandan, North Dakota, personal communication) on his BBS route south of Tappen in Kidder County. According to banding records, three flightless young were banded in late J

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