Average Arrival Dates for selected migrants to Clatsop Co.
Average Arrival Dates for selected migrants to Clatsop Co.
1988 1989 1990 1991 1992 1993 1994 1997 1998 1999 2000
avg sd min max
SWALLOW,TREE 64 57 56 47 66 66 56 48 65 62 30 56 Feb 25 11 30 66
HUMMINGBIRD,RUF 52 52 69 53 74 62 69 62 55 61 Mar 2 8 52 74
SWALLOW,VG 64 64 62 69 66 77 58 95 65 65 80 70 Mar 11 11 58 95
VULTURE,TURKEY 95 84 80 104 73 85 69 80 84 Mar 25 11 69 104
OSPREY 93 88 82 89 87 80 97 94 81 88 Mar 29 6 80 97
WARBLER,OC 98 92 84 97 82 82 85 95 86 101 92 90 Mar 31 7 82 101
TERN, CASP 100 92 94 97 87 95 92 95 86 90 88 92 Apr 2 4 86 100
YELLOWTHROAT,C 100 92 91 97 95 93 83 95 94 100 100 95 Apr 5 5 83 100
SPARROW,SAVANNA 100 96 97 94 93 106 95 74 121 99 98 Apr 8 12 74 121
PUFFIN,TUFTED 107 106 98 90 94 95 97 98 Apr 8 6 90 107
SWALLOW,BARN 99 92 104 104 103 85 97 102 101 104 99 Apr 9 6 85 104
SWALLOW,RW 113 91 104 129 115 97 92 106 Apr 16 14 91 129
WARBLER,BTGY 106 128 87 111 110 107 106 102 108 102 107 Apr 17 10 87 128
GUILLEMOT,PIG 148 106 132 96 94 72 108 Apr 18 28 72 148
SWALLOW,CLIFF 89 124 91 117 106 115 120 102 108 Apr 18 13 89 124
WARBLER,WILS 106 118 105 111 102 107 106 117 108 107 109 Apr 19 5 102 118
FLYCATCHER,PS 135 118 132 131 115 122 120 123 116 126 113 123 May 3 7 113 135
MARTIN,PURPLE 131 116 133 126 121 121 124 115 135 125 May 5 7 115 135
SWIFT,VAUX'S 137 119 139 124 112 116 134 129 118 125 May 5 10 112 139
WARBLER,YELLOW 134 127 125 131 129 129 128 124 128 127 128 May 8 3 124 134
THRUSH,SWAINSON 134 141 125 143 130 135 121 116 122 127 129 May 9 9 116 143
TANAGER,W 135 126 134 124 136 123 130 May 10 6 123 136
FLYCATCHER,OS 134 127 132 132 136 122 142 127 132 May 12 6 122 142
VIREO,WARBLING 135 128 142 139 132 124 134 128 123 132 May 12 6 123 142
PEWEE,WW 134 141 139 126 130 149 127 135 May 15 8 126 149
GROSBEAK,BH 153 140 141 144 151 132 134 136 123 139 May 19 9 123 153
FLYCATCHER,WIL 172 161 132 164 158 151 156 Jun 5 14 132 172
Recent sighting on the Columbia Estuary: