Tuesday, 3 January 2017

NIPIGON CHRISTMAS BIRD COUNT 2016


CHRISTMAS BIRD COUNT 2016

23rd annual Christmas Bird Count

December 17, 2016

 22 field observers and 7 feeder watchers

 28 species

  3 Common Merganzers

 16 Ruffed Grouse

  3 Bald Eagles

  1 Northern Goshawk

  1 Herring Gull

160 Rock Pigeons

   1 Northern Hawk Owl

 11 Downy Woodpeckers

 15 Hairy Woodpeckers

  3 Pileated Woodpeckers

  1 Northern Shrike

 40 Gray Jay –Canada Jays

 38 Blue Jays

 20 Crow

433 Ravens

185 Black-capped Chickadees

  2 Boreal Chickadees

 13 Red breasted Nuthatch

109 Starlings

 17 Bohemian Waxwings

  1 Dark-eyed Junco

283 Pine Grosbeaks

  4 Purple Finch

 17 Common Redpoll

  7 Pine Siskens

 32 American Goldfinch

121 Evening Grosbeak

 23 House Sparrows

Seven Mammals Observed:

16 Red Squirrels; 4 Deer; 2 Otter: 1 Vole;  5 Snowshoe hares; 1 Muskrat; 1 Flying Squirrel.

Saturday, 31 December 2016

Year End Pageview total = 28,309

Thank you to the readers of this Blog in the year 2016.
Around 6000 Pageviews ,
Looking forward to the New Year and Peace on Earth.
 
Two Toms in the snow.
 
Red morph and grey morph Ruffed Grouse.
 
 
These two guys had five hens to chase through the snow.
 

Monday, 21 November 2016

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Sunday, 6 November 2016

Change is in the Hare

Still only ears and feet turned white so far. Nov. 6
 
Just about a complete change Nov. 6, 2016
 
Keeping a low profile.
Nov. 6, 2016

Tuesday, 1 November 2016

October Birding


OCTOBER BIRDING 2016

On October 29 and 30, 2016 Kaarlo’s “group” travelled  through:  the Golf Course Road; Maatta’s Road; the municipality of the Township of Nipigon; Nipigon Marina; the Saw Mill Point Trail; Lake Helen; Polly Lake; Hurkett Dock; the community of Hurkett; Hurkett Cove; and Ouimet Canyon Road.

707 birds divided among 32 species

LIST OF SIGHTINGS


11 Canada Geese

7 Herring Gulls

99 Snow buntings

19 Ravens

80 Rock Doves (Pigeons)

6 European Starlings

36 Hooded Merganzers

6 Crows

53 Black capped Chickadees

6 Ruffed Grouse

16 Common Merganzers

14 Gull species unknown

10 Red breasted Nuthatches

2 Mallards

2 Longtail Ducks

4 Ringbill Gulls

11 Goldeneyes

9 Canada Jays

2 Common Loons

4 Bald Eagles

11 Blue Jays

1 Hairy Woodpecker

2 Juncos

3 Tree Sparrows

7 Trumpeter Swans (Hurkett Dock)

200 Black AND White wing Scoters

1 Pileated Woodpecker

9 Pine Grosbeaks

1 Rough-legged Hawk

65 Terns unknown species

1 Downy Woodpecker

9 Ring neck Ducks

Walleye Conclusion


WALLEYE Conclusion

From: The Status of Walleye in Nipigon Bay Area of Concern: 2012

Prepared for Environment Canada

By: Terry Marshall, Marshall Consulting

March 31, 2013

I am skipping over the next 14 pages of the Report which covers the following topics:

Recent Research, assessment and monitoring studies:

Genetics of stocks

Telemetry studies: seasonal movements and habitat use ( they want to continue this study to see if there really are two distinct spawning populations)

Walleye spawning observations and drift netting Nipigon River

Walleye and Northern Pike abundance: Lake Helen

Fish Community assessment Lake Helen

Electrofishing surveys: Nipigon Bay and River

Fish Community Index Netting: Nipigon Bay

Walleye Population assessment: Nipigon Bay

STATUS OF WALLEYE STOCKS AND THEIR HABITAT IN THE NIPIGON SYSTEM

Reference sites

Recovery of collapsed populations

In all cases, rainbow smelt were also present in these water bodies which is an important consideration  if making comparisons.  The Nipigon Bay East area has the greatest biomass of rainbow smelt documented in Canadian Waters of Lake Superior (Yule et al 2008).  The species was also found to be generally of larger body size in this part of the lake.  The presence of a large and abundant prey such as rainbow smelt has a positive influence on walleye growth energetics.  In Western U.S. reservoirs, growth rate increases once rainbow smelt became a large part of walleye diet [Johnson and Goetti 1999; Groeb et all 2008]. On the other hand, rainbow smelt may also compete with and prey on age-0 walleye which in some instances can significantly reduce their density [Mercedes-Silva et al 2007].

 

 

STATUS INDICATORS


Walleye Population status

1.       Abundance remains low – approx. 5000 Lake Helen

2.       Density is increasing

3.       Growth rates are very high

4.       Mortality is very low

 

Walleye Habitat status

 

Information needs ;

Genetic analysis of stocks

Population monitoring and assessment

 

If genetic analysis determines that two discrete populations exist, the size of each must be determined independently.

 

CONCLUSIONS


There have been many changes in the 50+ years since Ryder’s [1956] early studies and the collapse of the walleye fishery in Nipigon Bay.  There have been drastic shifts in the composition of the aquatic community, along with significant improvements to nearshore habitat within the Bay, and recent changes to the thermal properties of the area brought about by climate warming.  Together , these present a new environment for walleye to which they continue to adapt. This process appears to have promoted the development of two separate stocks of walleye in the Nipigon system.

 

We have a new  population [or two] of walleye here today, different from the historic population in terms of its genetics, its spawning behaviour, and its annual movement patterns and use of habitat.  This population is thought to be at a relatively low level of abundance compared with historic estimates, but quite healthy in all other respects.  Growth rates are rapid and mortality is low.  Together these traits suggest that large, rapidly maturing fish are present and have the potential to produce quantities of offspring in the future.  Clean, high quality substrate is available in unobstructed spawning areas in both Nipigon and Jackfish rivers and it not constraining recovery.

 

On the basis of this evidence, it is recommended that the BUI status of the walleye population and their habitat in the Nipigon Bay AOC be updated to “ Not impaired”.

 

The 40,000 fish target for Walleye recovery may never be achieved in light of all the changes observed in this ecosystem [Colby 2007].  All that can be done to accomplish this has been done.  Maintaining fishing mortality at a low level will help the walleye population expand to achieve its new equilibrium.