Friday, 31 January 2014

Why do birds sing?

Robin by Andrew Malcolm
Birds sing in order to communicate and for two main reasons -
  • to attract a mate
  • to defend a territory
A male bird singing in spring and early summer (and it is mostly males) is proclaiming that he is in tip-top breeding condition and is ready and able to mate. Females in the vicinity are attracted by the song and can judge by it whether or not the singing male will make a suitable mate. She can decide by the quality of his song as to whether he is strong and healthy enough for the rigours of mating and providing food for their offspring.

The singing male is also defending his territory. He is, in strident terms, telling
Garganey by Richard Zamora
other males that this patch is his, as is the female, and to keep well away. Just as the female is attracted to the male's song, other males are repelled by it. This largely avoids unnecessary physical confrontation between males which could lead to injury to either or both. An injury to any wild animal greatly reduces its survival chances. Furthermore, if a male for whatever reason, does not defend his territory, another, probably younger male, will quickly move in and take over.

Song Thrush by Fran O'Connell
Perhaps the best time to listen to birdsong is at dawn, the aptly named 'Dawn Chorus'. Why should birds sing most actively at dawn? At dawn the air has not warmed up so that conditions are usually fairly still and sound carries further. The males are also proclaiming that they are still alive and active and re-asserting their claims to territory and females after the night. It is also thought that feeding opportunities being limited at dawn, the birds can devote their time more readily to singing.


Wren by Fran O'Connell
By mid-July, singing will have very much declined. Most birds will have mated by then and competition for mates and territory will have fallen off. By late summer many species of bird will be in active moult and the last thing any bird will want is to attract a predator whilst their flying ability is impaired.

Skylark by Andrew Malcolm
In addition to singing, birds have a range of other vocalisations. These are used to warn other birds of threats such as predators and other dangers. Many species have contact calls, particularly used in feeding and migrating flocks to keep in touch and in communicating with fledged young. Most of us are familiar with the alarm call of a blackbird when disturbed or the 'tick tick tick' warning call of a robin.

Reed Warbler by Fran O'Connell
Some notable songsters easily heard in Waterford include the skylark with its seemingly endless cascade of song often delivered from high up in the sky. The song thrush is readily heard repeating each phrase of its song over and over again. Listen out for the reed warbler singing from deep cover in reed beds or the very loud song of a wren which seems impossibly vocal for such a tiny bird.

Bird song recordings are easily accessed on the internet and can be downloaded as apps. An excellent and informative book on bird song is 'Bird Watching With Your Eyes Closed' by Simon Barnes which introduces many familiar birdsongs of Britain and Ireland. An accompanying podcast can be downloaded from the internet.
Yellow Wagtail by Bernie Sheridan

RECENT NEWS


The discovery of an adult male yellow wagtail at Curragh Beach, Ardmore was a nice find. Disappointingly the bird departed after a short time, to the annoyance of would be observers. A pair of garganey was seen at Ballinlough near Kill. Garganey are a small duck which interestingly are the only duck species which migrates from the south in Africa into Europe to breed. Hopefully this pair might successfully raise a brood in County Waterford this year. 

Thursday, 9 January 2014

Celebrating Spring Migration in Waterford

Swallow by Andrew Malcolm


Every spring millions upon millions of birds migrate from Africa into Europe. They do so primarily to take advantage of the super abundance of food and longer days available in the northern hemisphere during spring, summer and autumn. These conditions are a prerequisite for successful breeding. Spring migration is concentrated in April and May and Waterford fully participates in this phenomenon.

For many, the swallow is the harbinger of spring. Due to the recent adverse cold weather conditions swallows were slow to arrive this year but are now here in good numbers.
Swift by Andrew Malcolm





Swifts are only just now appearing over our towns and will be the earliest departing migrant being mostly gone by late august.




Blackcap by Fran O'Connell
Being insectivorous warblers are mainly summer visitors to this country although small numbers over winter. Blackcaps can be heard singing their rich melodic song from cover at present and with a little patience close observation will be rewarded.



Little Tern by Fran O'Connell


Terns are a pelagic seabird also known as sea swallows for their elegant flight. Sandwich terns can now be easily observed fishing close inshore along the Waterford coast while continually uttering their harsh call. A little tern (a scarce
Waterford passage migrant) was recently briefly observed feeding along Clonea beach before heading to its breeding grounds.



Whimbrel by Andrew Malcolm
Some migrating species use Ireland as a staging post to feed up on their way to their breeding grounds far to the north of us. Each spring whimbrel (somewhat resembling curlew in appearance) feed on beaches in Waterford before continuing on to their breeding sites in Iceland. Black throated divers do not breed in Ireland so the adult summer plumaged bird recently observed at Helvick was most likely feeding up on passage north.


Firecrest by Paddy Dwan
Firecrests vie with the more familiar goldcrest as the smallest bird occurring in Europe. This spring Waterford experienced an unprecedented influx of at least three of this beautiful little bird. Further small numbers were recorded in Wexford. Whereas these occurrences were most likely a cold weather movement there remains the tantalising possibility that these birds were prospecting future breeders.


With so many birds moving from Africa into Europe there are bound to be a few overshoots. Hoopoes normally breed in Southern Europe but every year small numbers migrate way beyond their target area. True to form a hoopoe graced Creadan Head this spring lingering for several days to the delight of many bird watchers.

Hoopoe by Richard Zamora

Watch out over the next several weeks for cuckoos, dragonflies and butterflies such as holly blue and peacock.

Check out www.richzamora-images.com for images of Waterford wildlife.
Check out www.waterfordbirds.com for local wildlife updates and submission of records. If you have any questions or comments, please email them to japwatntr@gmail.com

Some Success Stories

Unfortunately, all too often, reports on bird populations deal with declining numbers and even extinctions so it is very pleasing to report on some success stories.

Collared Dove by Fran O'Connell
The collared dove is a pale, buff grey, medium sized dove with a distinctive black ‘collar’ across the neck, sides and a long tail. The collared dove started spreading across Europe in the early 20th century reaching Great Britain in the early 1950s and Ireland by 1959 (although anecdotal evidence suggests it may have reached Dungarvan prior to that date). It has now spread throughout Europe and North Africa. It is well established in North America but possibly as a result of introductions and escapees. Interestingly, collared doves are sedentary and do not normally migrate. Collared doves are widespread across Waterford, particularly in urban areas and regularly come to garden feeding stations, sometimes in large numbers.

Reed Warbler by Paul Walsh
The reed warbler is a migratory bird arriving in Ireland in early April and May and departing in September/October. Technically an acrocephalus warbler, it is a brown un-streaked bird, which, as its name suggests occupies reedbeds. It has a distinctive song, which is often the best indicator of its presence in dense reed. With patience reed warblers can be seen in reedbeds. Virtually unknown in Ireland until the 1960s, it has undergone a remarkable expansion in this country and is now well established in suitable habitat in Waterford.  Reedbeds along the rivers Blackwater, Suir and Bride are particularly good for encountering reed warblers.

Little Egret by Fran O'Connell
Little egrets are an all white plumaged, medium sized, elegant heron with a black pointed bill and black feet with yellow toes. Almost unknown in Ireland until the late 1980s, little egrets started occurring more regularly and became resident. Breeding was proven in 1997 for the first time in this country in Co. Waterford. In subsequent years other colonies were established and little egrets have now spread to most parts of Ireland and are common in Waterford in suitable aquatic habitats. Numbers in excess of 50 birds can sometimes be seen at Waterford roosts.

Buzzard by Andrew Malcolm

Ireland has a paucity of birds of prey compared to Great Britain and mainland Europe. Buzzards are one of the most common raptors (birds of prey) in Britain and Europe but until recently were extremely rare in Ireland. However, in recent years buzzards have begun rapidly expanding throughout this country and now are seen in every county. Buzzards are medium sized raptors with broad wings, which they hold in a shallow v while soaring. Buzzards can be seen perched on posts, poles and trees and soaring in the skies above. Buzzards are increasingly common and easily seen throughout Waterford.






RECENT SIGHTINGS AND NEWS

Caspian Gull by Paul Archer
The most exciting recent event was the discovery of a caspian gull at Dunmore East by Waterford based birder, Paul Archer. Caspian gulls are native to Eastern Europe and Central Asian. Along with being extremely rare in Ireland, caspian gulls present a very difficult identification challenge, making Paul’s achievement all the more noteworthy. The weather at Dunmore East was extremely foul at the time and not very conducive to bird watching. However, the gull lingered long enough for birders from all over Ireland to get to see and admire it. For many it was a very long awaited and appreciated addition to their Irish bird list. Along with the caspian gull a further 11 species of gull were noted in Waterford on one day which is very high by national norms.

Wheater by Andrew Malcolm
 An adult male ring-necked duck continues to over winter at Knockaderry reservoir, as does a spotted redshank at Tramore back strand.

Spring migration has already begun with several wheatears and sand martins recently sighted in Waterford. Over the next several weeks look out for swallows, sandwich terns and perhaps an exotic hoopoe.


Check out www.waterfordbirds.com for local wildlife updates and submission of records. If you have any questions or comments, please email them to japwatntr@gmail.com