Advertisement Picture


Advertisement Picture






Birdwatch News Archive


Female Pectoral Sandpipers in breeding condition are tied to the nest while males wander the tundra looking for suitable mates. Photo: Andreas Trepte (commons.wikimedia.org).
Female Pectoral Sandpipers in breeding condition are tied to the nest while males wander the tundra looking for suitable mates. Photo: Andreas Trepte (commons.wikimedia.org).Enlarge image

Sandpiper travels thousands of miles in pursuit of sex


Posted on: 12 Jan 2017

Male Pectoral Sandpipers have been recorded travelling as far as 8,000 miles in a single summer month in order to mate with as many females as possible.

The extraordinary findings, published this week in Nature, discovered that males were recorded visiting as many as 24 different potential breeding sites on the Alaskan tundra within a single season, flying an average of 110 miles between each mating attempt.

The average male covered some 1,900 miles, further than flying from Paris to Moscow, but one particularly promiscuous individual was recorded flying 8,100 miles in just four weeks. This feat is conducted shortly after they make the already arduous journey from their wintering grounds in South America.

Pectoral Sandpipers are polygynous, and those males which settle down in a single spot have little chance of copulation. The data backs that up: the results suggest that males do not have a final breeding destination after their northbound migration in spring, instead making nomadic movements across the Arctic.

This behaviour allows males to display and sire offspring at multiple sites within a single breeding season – indeed the most successful of the 120 radio-tagged sandpipers sired 22 offspring with six different females. Tenure (the duration of stay at a single site) correlated strongly with the number of breeding females at the site, suggesting that decisions to leave are dependent on local mating opportunities.

This is an astonishing display of stamina, and further confirmation that shorebirds are among the most able of all fliers. The Max Planck Institute for Ornithology explained in a statement: “Males have to reduce their sleep to defend and court females virtually non-stop throughout the endless Arctic summer days to successfully reproduce.”

Bart Kempenaers, who co-authored the study, commented: “Before we made this discovery, it was thought that birds (males and females) migrate from their wintering area to a single site, where they breed in that year.

“We think that they have developed the strategy to assess their local chances, and if they are not good they just move on to the next place.”


Your Comments

Tell us what you think...

You must be logged in to leave a comment. You can log in here.
If you don't have a user account please register.

Other News

Gulls, mink and nutrients implicated in pochard decline

Posted: 17 Jan 2017
Reasons for the recent decline of Common Pochard have been scientifically investigated for the very first time by the Wildfowl and Wetlands Trust (WWT).

Read more…


Red Kites generate millions for economy

Posted: 11 Jan 2017
A new report has found that tourists spend £8.2 million in Dumfries and Galloway after travelling to see Red Kites.

Read more…


Schoolchildren ready to survey Britain’s birds

Posted: 05 Jan 2017
Thousands of schoolchildren across Britain will be swapping books for binoculars this term to take part in the RSPB’s Big Schools’ Birdwatch.

Read more…


Blue Tits missing from gardens after wash-out summer

Posted: 03 Jan 2017
The latest figures from the British Trust for Ornithology show that Blue Tit numbers are down, probably due to the unusually wet summer.

Read more…


DNA analysis of bluebird faeces reveals benefits for vineyards

Posted: 02 Jan 2017
DNA techniques have shown that Western Bluebirds nesting in California’s vineyards help grape growers by eating agricultural pests.

Read more…


  2 3 4 >

Back to News Listing