Forth Seabird Group


Counting Seabirds Since 1959



Razorbill on Bass Rock

Table of Annual Razorbill Counts

The unit Forth Seabird Group use for counting Razorbill is Apparently Occupied Sites ie AOS.

YearBass RockCraigleithLambFidraEyebroughyInchkeithCarr CraigInchcolmHaystackInchmickery + Cow & CalvesInchgarvie + Forth BridgeLong CraigMay IsleTotal
1959quite a few pairs
1960c20 b
1961x
196255 b2
196320 b1
1964104+
1965103 b4
1966c 402+
1967c 305
196829+10
19692030161350
197037102
1971286+4
1972c 3661c5
19733487
19744611112
197549124 s/ 6 bc 14
1976c50641210 s/ 38b15
19774565185+20
197840519+1918
197967 b64c201723
1980x40+5+1329
1981x4118+28262086
198274+57x3225
198354+4414+33302220
1984110 b42214430+2051
1985x5724+49x1825
198636402148231864
19879152c3538 b32+1887
1988x622953402128
1989x574172462613
1990x603375602368
1991x80+3291420000001633
1992x4640720380000002581
1993x611365640000003022
1994x763685550000003034
1995x10847c 800560200004248
1996188737374068030000c2281 S /3405 b2760
19971778424103056040000c2330 s / 3478 b2778
1998xxx86075020000c2585 /(3,859 b)2748+
1999781256810805704000034293869
20008320087110064011000031053660
200113713696890710x0000c2756 / (4,114 b)3285
200219314196119061011+000032153836
2003891631128805809+0000c2080 / (3105 b)519
20041581711051010540500002677 / 3313 b3271
20051981327369049040000c3800 (4713b)5238
2006169175621230530500002975, (3811 b)3562
2007119181771280560600002840 (3635 b)567
200885147809562050000c2700 (3464 b)3174
2009c7011770127540400002400 (3008 b)2842
2010631364212380040000 2557 (3234 b)3005
201194185701086301400002705 (3,012 b)3239
2012106157667093012000030683572
20131051295910959014000028793354
2014c1242116517011801200002987 (3796 b)3563
2015c1441934613910101800003,202 (4,590 b)3843
2016c91AOS (c140 IND)186AOS (282 IND)82 AOS (154 IND)122AOS (189 IND)96 AOS (140 IND)07 AOS (29 IND)0000c3,570 (5117ind)c4,154
2017c9816766165103015010038994514
2018c176186761611340901 bird on sea003738 / (4867 Ind)4480
2019170264119136131018+00004166 / (5377 Ind)5004
2020xxxxx0x00004124 / (6292 ind)x
202192190911321240900004813 / (6184 b)5451
20221593327294164015000043815217
202316722911111095030000054936235
20241012517979690120000c3392 / (4892 IND)3983
202514524865718201800003594 (5316 IND)4223

AOB / AON / AOS / AOT = Apparently Occupied Burrows / Nests / Sites / Territories; IND = Individual birds
s = sites; b = birds; x = breeding but not counted; + = minimum count; c = circa; 0 = none breeding;
blank = no information available