Aggressive behavioural interactions between swans (Cygnus spp.) and other waterbirds during winter: a webcam-based study

Wood, Kevin A.; Ham, Phoebe; Scales, Jake; Wyeth, Eleanor; Rose, Paul E.

doi:10.1186/s40657-020-00216-7

Avian Research

Table 1 The total numbers of aggressive interactions (n) given and received by each focal waterbird species

From: Aggressive behavioural interactions between swans (Cygnus spp.) and other waterbirds during winter: a webcam-based study

Focal species	Aggression towards	n	Aggression from	n
Bewick’s Swan	Bewick’s Swan	245	Bewick’s Swan	245
	Northern Pintail	37	Northern Pintail	11
	Tufted Duck	32	Tufted Duck	3
	Eurasian Coot	30	Eurasian Coot	4
	Canada Goose	19	Canada Goose	16
	Eurasian Teal	17	Eurasian Teal	1
	Northern Mallard	11	Northern Mallard	2
	Common Moorhen	9	Common Moorhen	1
	Gull spp.	9	Gull spp.	0
	Greylag Goose	7	Greylag Goose	7
	Mute Swan	0	Mute Swan	23
Mute Swan	Mute Swan	364	Mute Swan	364
	Whooper Swan	80	Whooper Swan	27
	Northern Mallard	31	Northern Mallard	3
	Bewick’s Swan	23	Bewick’s Swan	0
	Canada Goose	19	Canada Goose	5
	Northern Pintail	1	Northern Pintail	0
	Gull spp.	1	Gull spp.	0
Whooper Swan	Whooper Swan	137	Whooper Swan	137
	Mute Swan	27	Mute Swan	80
	Northern Mallard	7	Northern Mallard	1
	Canada Goose	0	Canada Goose	2
Canada Goose	Canada Goose	190	Canada Goose	190
	Northern Mallard	28	Northern Mallard	3
	Bewick’s Swan	16	Bewick’s Swan	19
	Mute Swan	5	Mute Swan	19
	Northern Pintail	2	Northern Pintail	1
	Whooper Swan	2	Whooper Swan	0
	Tufted Duck	1	Tufted Duck	0
	Eurasian Teal	1	Eurasian Teal	0
	Greylag Goose	0	Greylag Goose	3
Greylag Goose	Greylag Goose	39	Greylag Goose	39
	Bewick’s Swan	7	Bewick’s Swan	7
	Canada Goose	3	Canada Goose	0
	Northern Mallard	2	Northern Mallard	0
	Northern Pintail	2	Northern Pintail	0
	Tufted Duck	1	Tufted Duck	0
Common Shelduck	Common Shelduck	2	Common Shelduck	2
	Eurasian Coot	3	Eurasian Coot	0
Northern Mallard	Northern Mallard	240	Northern Mallard	240
	Northern Pintail	56	Northern Pintail	26
	Tufted Duck	9	Tufted Duck	23
	Eurasian Coot	7	Eurasian Coot	1
	Eurasian Teal	6	Eurasian Teal	4
	Common Moorhen	6	Common Moorhen	3
	Canada Goose	4	Canada Goose	28
	Mute Swan	3	Mute Swan	31
	Bewick’s Swan	2	Bewick’s Swan	11
	Whooper Swan	1	Whooper Swan	7
	Common Pochard	1	Common Pochard	0
	Gull spp.	1	Gull spp.	0
	Greylag Goose	0	Greylag Goose	2
Northern Pintail	Northern Pintail	356	Northern Pintail	356
	Eurasian Teal	38	Eurasian Teal	24
	Northern Mallard	26	Northern Mallard	56
	Common Moorhen	22	Common Moorhen	18
	Bewick’s Swan	11	Bewick’s Swan	37
	Eurasian Coot	8	Eurasian Coot	21
	Tufted Duck	4	Tufted Duck	10
	Canada Goose	1	Canada Goose	2
	Mute Swan	0	Mute Swan	1
	Greylag Goose	0	Greylag Goose	2
Eurasian Teal	Eurasian Teal	146	Eurasian Teal	146
	Northern Pintail	24	Northern Pintail	38
	Eurasian Coot	10	Eurasian Coot	12
	Northern Mallard	4	Northern Mallard	6
	Bewick’s Swan	1	Bewick’s Swan	17
	Canada Goose	0	Canada Goose	1
Tufted Duck	Tufted Duck	152	Tufted Duck	152
	Northern Mallard	23	Northern Mallard	9
	Northern Pintail	10	Northern Pintail	4
	Bewick’s Swan	3	Bewick’s Swan	32
	Eurasian Coot	3	Eurasian Coot	1
	Common Pochard	1	Common Pochard	3
	Canada Goose	0	Canada Goose	1
	Greylag Goose	0	Greylag Goose	1
Common Pochard	Common Pochard	10	Common Pochard	10
	Tufted Duck	3	Tufted Duck	1
	Eurasian Coot	2	Eurasian Coot	0
	Northern Mallard	0	Northern Mallard	1
Eurasian Coot	Eurasian Coot	61	Eurasian Coot	61
	Northern Pintail	20	Northern Pintail	8
	Eurasian Teal	12	Eurasian Teal	10
	Common Moorhen	4	Common Moorhen	3
	Bewick’s Swan	3	Bewick’s Swan	30
	Northern Mallard	1	Northern Mallard	7
	Tufted Duck	0	Tufted Duck	3
	Common Pochard	0	Common Pochard	2
	Common Shelduck	0	Common Shelduck	3
Common Moorhen	Common Moorhen	102	Common Moorhen	102
	Northern Pintail	18	Northern Pintail	22
	Northern Mallard	3	Northern Mallard	6
	Eurasian Coot	3	Eurasian Coot	4
	Bewick’s Swan	1	Bewick’s Swan	9
Gull spp.	Gull spp.	19	Gull spp.	19
	Bewick’s Swan	0	Bewick’s Swan	9
	Mute Swan	0	Mute Swan	1
	Northern Mallard	0	Northern Mallard	1

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ISSN: 2053-7166

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