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The SOS would like to make a real effort this year to establish just how many (or how few!) Willow Tit, Hawfinch and Wood Warbler remain in the county this breeding season. We have a number of people specifically “looking out” for them, but you can help too. If you are lucky to come across any of these three species between now and mid-June (mid July for Wood Warbler) please let me know as soon as possible (contact details below). Please also let me know the 6-figure grid reference of where you see any of these species. Feel free to request confidentiality for any sightings that you share with me - such confidentiality will be respected.
Willow Tit
On the BTO website there is a helpful video telling you how to distinguish Marsh Tits from Willow Tits - www.bto.org/about-birds/bird-id/telling-apart-marsh-and-willow-tits.
Key points to note are:-
- listen for Willow Tit’s distinctive calls and songs, best heard during the first hours after daylight, and particularly for its nasal eez-eez-eez call which is so different from Marsh Tit’s explosive pitchew call. The BTO video above gives plenty of examples of calls and songs.
- note the habitat (Willow Tits prefer wet scrub and young broad-leaf woods, whereas Marsh Tit prefer woods with mature broad-leaf trees. Remember that Willow Tits excavate a hole in the tree for their nest, so they tend to avoid having to excavate through the hard bark of a mature tree, whereas Marsh Tits find ready-made holes in which to nest.)
- the only definitive visual characteristic is a pale spot on the upper mandible (which is definitive on the Marsh Tit, and absent on the Willow Tit). However, also make a note of whether there is a pale patch on the wing (present on adult Willow Tits but not on young birds. Unfortunately it can also appear on a few Marsh Tits too), and assess whether you believe the cap on the head is shiny (Marsh Tit) or dull (Willow Tit) and whether the bird has warm buff flanks (Willow Tit).
The call and song are the best ways to tell the two species apart, but assess all the factors above as the more boxes are ticked the more certain the ID.
Hawfinch
Hawfinch is not an ID challenge, but finding them is! Listen and look out for them in mature woodlands, especially in the few places where there are mature yew trees and nearby mature broadleaf trees. They frequent the tops of trees, and their song is a halting teek, teek, teek, teek, tur-whee-whee. They have a variety of calls; a short ptik, ptik-it or pix, a thin Blackbird-like tzeeip or srree, and a harsh chi. If you don’t have BWPi the best sound recording I have found of Hawfinch calls on the internet is on YouTube (Click Here).
Wood Warbler
A relatively easy warbler to identify, it is the largest Phylloscopus Warbler, and has long pointed wings, a lemon-yellow supercilium and throat, and white underparts. Wood Warblers arrive back in the county any time from early April onwards, with the average first date of arrival being 22 April. It is a great songster, singing whilst moving among tree foliage or whilst in flight. Call is a piping piu repeated many times, whilst the song is a trill stip, stip, stip, stip, stip, stip-stip-stip-stip-stip-stip which rises and then falls away.
In Sussex they favour the sandstone ridges with birch, beech and oak woodland, so look out for them especially in the far north-west of the county close to Haslemere and on Ashdown Forest.
Your help in finding any of these species will be really appreciated.
Richard Cowser.
01903 770259 /
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