Trip Report - 17th — 19th March 2006



Friday 17th

PLI did a recce, starting from Snettisham at 07:00
Snettisham; Nothing
Snettisham / Heacham concrete wall; 15 Oystercatchers
Heacham South; By the tump, ca. 300 Oystercatchers and a flock of about 500 grey waders, identified as Knot from a long distance, but in view of what was present on Saturday probably Bar-tailed Godwit! Two further Oystercatcher flocks 80 and 150 birds respectively.
Heacham Far North; 80 Oystercatchers and a small number of medium sized grey waders at the very far end.

Due to recent changes in responsibility for the land behind the Snettisham and Heacham beaches the next job was to collect a new key to give access to the beaches. This sorted out, the tide had fallen off sufficiently to note that there were few birds using the mussel beds out from the falling tide site and to mark where to set nets near the tump.

The team started to arrive from mid afternoon. Nine people squeezed into two cars to go to set at 20:30, picking up a tenth, SD, from Kings Lynn services on the way. The reason for squeezing as many of the setting team in to the two four wheel drive cars as possible was to get them to the setting site without a long walk, another four who went straight to the beach parked at Heacham and walked to the tump.

Fresh bulldozer tracks through the intended setting area meant a little more thought was needed about the position of the nets. 2 narrow full size nets (i.e. 4 cannon nets) and 4 small mesh, two-cannon, nets were set in time to get back to base and in bed shortly after midnight

 

 

Saturday 18th

Up 05:00. Accessing the part of the beech used for catching gave the opportunity to look towards the catching area from the seawall and note there were birds in front of the nets, albeit well below them. RR was dropped off to look what happened to the birds still on mudflats off Snettisham North as the tide came in and SD to observe the catching area from the south. Rest of the team to base by the tump except PLI who observed the nets from the north and DC and BW who did the long-stop role at that end.

At this stage the tide was still 20+ metres from the nets. The majority (400) of Oystercatchers were in the area of the nets, most directly in front. There was also a flock of grey waders between PLI and the nets plus another 100 Oystercatchers SD's side of the nets. With grey waders a higher priority than Oystercatchers, discussing when was best to move them when the grey wader flock lifted of its own accord. This did what was required putting the grey waders, Bar-tailed Godwit, in front of the catching area but closer to the tide than the Oystercatchers. At this stage there was approximately equal numbers of each species with half the flock in front of the two narrow full nets, SD's end of the line of nets.

The flock lifted several times, presumably as a result of wave action, and gradually most moved south and joined the other Oystercatcher flock. SD made her presence known in order to encourage the birds back towards the catching area but many departed. For a while only a couple of birds were in front of the nets but about 120 Oystercatchers and 70 Bar-tails returned and settled in front of two of the small mesh nets and one of the narrow full nets. The tide was still 12 metres from the nets and with the Bar-wit in particular at the tide edge it was necessary to wait for them to be pushed closer. By 15 minutes before high tide the tide did not seem to be advancing much and the birds had moved to between 8 and 10 metres from the net, the limit to which we expect to catch, so decided to fire the two small mesh nets with birds in front. The nets went out well, catching all the birds directly in front.

 

Species
New
Control / Retrap
Totals
       
Bar-tailed Godwit
50
5
55
Oystercatcher
33
18
51
Grey Plover
-
1
1
 
 
 
 
Totals
83
24
107

Although dry it was unseasonably cold, especially with a force 5 wind.

Returned to base for breakfast and a discussion on plans. Whilst RR had been watching at Snettisham both the Oystercatchers and some of the Knot had come ashore rather than fly south initially but had gradually departed well before high tide. Similarly, we knew the Bar-tailed Godwit tended to depart before high tide and the time we could catch the using the conventional technique of setting the net just above high tide. One option was to set, after the evening high tide, well down the beach for a rising tide catch in the small mesh nets which are easier to extract from. Mist netting on the evening tide was in doubt as the wind, currently strong, was only scheduled to reduce early evening. Looking at the timings and the need for at least some sleep meant that it would be difficult to do both mist netting and a morning rising tide catch. Decided to risk the wind being OK for mist netting and not make a catching attempt on the morning tide.

Sorted equipment and made a start on reducing the height of the beech hedge at base before departing to set shortly after 16:00. Starting to actually set was delayed as due to a misunderstanding no guy cords had been packed! This rectified, nets were set on two pools (or rather what was left of pools, it having been dry recently). Food prepared by BW and LM, followed by KCs birthday cake eaten at base before manning the nets.

The wind gradually improved during the evening allowing a reasonably successful catch to be made.


Species
New
Control / Retrap
Totals
 
 
 
 
Dunlin
39
-
39
Knot
21
-
21
Redshank
1
2
3
Oystercatcher
2
-
2
 
 
 
 
Totals
63
2
65

Return to base well before midnight. Chat over drinks before bed.

Sunday 19th

With no catching people got up as they woke up. JS and KE went to look for colour ringed Turnstone at Port Sutton Bridge. Despite the cold weather, the birds did not seem particularly keen on feeding and despite a few dozen being present on arrival they departed in the direction of the Wash when disturbed.

After a bacon butty breakfast provided by BW some people departed whilst others finished dealing with the hedge and the group's Operation Committee held one of its occasional meetings.



© Wash Wader Ringing Group, 2006