"cuckoos" <-
structure(list(length = c(21.7, 22.6, 20.9, 21.6, 22.2, 22.5, 
22.2, 24.3, 22.3, 22.6, 20.1, 22, 22.8, 22, 22.4, 22.3, 20.6, 
22.1, 21.9, 23, 22, 22, 22.1, 22, 19.6, 22.8, 22, 23.4, 23.8, 
23.3, 22.5, 22.3, 21.9, 22, 21.7, 23.3, 22.2, 22.3, 22.8, 22.9, 
23.7, 22, 21.9, 22.2, 24.4, 22.7, 23.3, 24, 23.6, 22.1, 21.8, 
21.1, 23.4, 23.8, 23.3, 24, 23.5, 23.2, 24, 22.4, 22, 23.9, 20.9, 
23.8, 25, 24, 21.7, 23.8, 22.8, 23.1, 23.1, 23.5, 23, 23, 21.8, 
23, 23.3, 22.4, 22.4, 23, 23, 23, 23.9, 22.3, 22, 22.6, 22, 22.1, 
21.1, 23, 23, 23.4, 24, 23.3, 23.1, 22.4, 21.8, 21.8, 24.9, 24, 
22.1, 21, 22.6, 21.9, 24, 19.8, 22.1, 21.5, 20.9, 22, 21, 22.3, 
21, 20.3, 20.9, 22, 20, 20.8, 21.2, 21), breadth = c(16.1, 17, 
16.2, 16.2, 16.9, 16.9, 17.3, 16.8, 16.8, 17, 16.5, 16.9, 16.5, 
17, 17, 16.3, 16.2, 16.8, 17, 16.9, 17, 17, 17.3, 16.8, 15.8, 
17.1, 16.9, 16.4, 16.4, 16.8, 17.1, 17, 17.1, 17.2, 16.2, 16.7, 
16.8, 16.2, 16.4, 17.2, 17, 17.2, 17, 16.2, 16.2, 16.3, 16.6, 
17, 16.9, 16.3, 16.7, 16.5, 16.2, 16.3, 16.7, 17.5, 17.3, 16.4, 
17.3, 16, 17, 16.9, 15.8, 17.3, 17.5, 17.5, 16.2, 16.5, 16.2, 
17.1, 16.1, 16.9, 16.7, 17, 16, 15.9, 17.1, 16.6, 16.9, 16.1, 
17.2, 16.2, 16.9, 15.2, 16.3, 17, 16, 16.4, 16.4, 17, 16.3, 16.7, 
17, 16.3, 16.7, 16.5, 16, 16, 16.8, 15.8, 16.2, 17.1, 16, 16.9, 
17.2, 15, 16, 16.2, 15.7, 16.2, 15.5, 16, 15.9, 15.5, 15.9, 16, 
15.7, 15.9, 16, 16), species = structure(c(2, 2, 2, 2, 2, 2, 
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 5, 5, 5, 
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
1, 1, 1, 1, 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 6, 6, 6, 6, 6, 6, 
6, 6, 6, 6, 6, 6, 6, 6, 6), .Label = c("hedge.sparrow", "meadow.pipit", 
"pied.wagtail", "robin", "tree.pipit", "wren"), class = "factor"), 
    id = c(21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 
    34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 
    49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 
    64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 
    79, 80, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 
    95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 
    108, 109, 110, 111, 198, 199, 200, 201, 202, 203, 204, 205, 
    206, 207, 208, 209, 210, 211, 212, 224, 225, 226, 227, 228, 
    229, 230, 231, 232, 233, 234, 235, 236, 237, 238)), .Names = c("length", 
"breadth", "species", "id"), row.names = c("1", "2", "3", "4", 
"5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", 
"16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", 
"27", "28", "29", "30", "31", "32", "33", "34", "35", "36", "37", 
"38", "39", "40", "41", "42", "43", "44", "45", "46", "47", "48", 
"49", "50", "51", "52", "53", "54", "55", "56", "57", "58", "59", 
"60", "61", "62", "63", "64", "65", "66", "67", "68", "69", "70", 
"71", "72", "73", "74", "75", "76", "77", "78", "79", "80", "81", 
"82", "83", "84", "85", "86", "87", "88", "89", "90", "91", "92", 
"93", "94", "95", "96", "97", "98", "99", "100", "101", "102", 
"103", "104", "105", "106", "107", "108", "109", "110", "111", 
"112", "113", "114", "115", "116", "117", "118", "119", "120"
), class = "data.frame")