Bullhead · Cottus gobio

Bullhead in the River Swift

Largest measured bullhead: 10.7 cm

The largest bullhead measured in Environment Agency surveys of the River Swift was 10.7 cm, recorded at Churchover on 10 February 1992.

Across 147 measured bullhead, the median measured length was 6.6 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Swift.

See bullhead records across England →

Most recent observation27 June 2017D/s Churchover

Largest measured bullhead: 10.7 cm
Median length: 6.6 cm
Fish measured: 147
Survey locations: 9

Individual EA measurements

Largest measured bullhead

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

Length	Survey date	Survey location	Survey ID
10.7 cm	10 Feb 1992	Churchover	80714
10.2 cm	12 May 1987	Churchover	80726
10 cm	24 Aug 1996	Misterton	80690
9.8 cm	10 Feb 1992	Misterton	80692
9.8 cm	10 Feb 1992	Kimcote	80687
9.6 cm	12 May 1987	Brownsover	80729
9.5 cm	13 Jun 2013	D/s Churchover	137143
9.5 cm	1 Oct 1996	Bransford Bridge	80696
9.5 cm	10 Feb 1992	Churchover	80714
9.5 cm	10 Feb 1992	Bransford Bridge	80698

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where bullhead were found

Each point marks a survey location with at least one bullhead record.

Choose a point on the map to see what was recorded there.

Map points are approximate and don’t show fishing access. Check local permissions before visiting.

Place surveyed	First recorded	Last recorded	Visits finding bullhead
Kimcote	10 Feb 1992	27 Jun 2017	3
D/s Churchover	5 Apr 2006	27 Jun 2017	3
Misterton	10 Feb 1992	5 Apr 2006	3
Lutterworth Golf Course	5 Apr 2006	5 Apr 2006	1
Elliot's Field	4 Apr 2006	4 Apr 2006	1
Churchover	12 May 1987	1 Oct 1996	3
Brownsover	12 May 1987	1 Oct 1996	3
Bransford Bridge	10 Feb 1992	1 Oct 1996	2
Lutterworth Golf Course site 2c	24 Sept 1996	24 Sept 1996	1

Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.

1987–2017

Survey records by year

Each bar shows how many survey visits recorded bullhead that year.

287

088

089

090

091

592

093

094

095

696

097

098

099

000

001

002

003

004

005

406

007

008

009

010

011

012

113

014

015

016

217

Fish measured by surveyors

Measured length distribution

See how the 147 measured fish were spread across different length ranges.

Smallest: 3 cm
Lower quarter: 4.4 cm
Median: 6.6 cm
Upper quarter: 8 cm
Largest: 10.7 cm

0–99 mm

144

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Swift

Compare other species with enough survey and measurement data for a detailed page.

3-spined stickleback Stone loach Pike Minnow Roach European eel

Before you fish

Good to know

These are past survey records, so the fish present today may be different. Map points are approximate—check local access, permissions and fishing rules before visiting.

Learn how RiverFish uses the data →