Visitors To Northamptonshire - Early And Late Dates

These dates represent the earliest and latest dates for the presence in Northamptonshire of some visitors. Passage migrants should give early and late dates for both passages, however, to be included here, passage migrants have been viewed as summer visitors because there is too much overlap in the summer months to give clear dates.

Not all species are represented here for a variety of reasons. Some passage migrants may not have a pattern that lends itself to inclusion in this section E.G. Common Buzzard Buteo buteo and Black-legged Kittiwake Rissa tridactyla. Records of some summer and winter visitor have been 'spoiled' by a few out of season individuals E.G. summer: Common Chiffchaff Phylloscopus collybita and Blackcap Sylvia atricapilla, winter: Short-eared Owl Asio flammeus and Fieldfare Turdus pilaris. There are always borderline species where inclusion here seems relevant, but exceptional records have made the dates look unbalanced. In the case of Willow Warbler Phylloscopus trochilus more than one record was in December (could these have been Common Chiffchaff Phylloscopus collybita?). The following records are not included so as to give balance to the dates of these species: Barn Swallow Hirundo rustica 24-12-65, Garden Warbler Sylvia borin 18-11-72 and Yellow Wagtail Motacilla flava 16-01-80 & 5-12-71. By referring to the table representing Visitors to Northamptonshire the extreme nature of these four records can be seen.

Winter Visitors Earliest Date Latest Date

Bewick's Swan 11/10/75 03/05/81

Jack Snipe 07/09/76 06/05/82

Redwing 04/09/96 23/05/76

Brambling 29/09/72&84 05/05/83

Passage Migrants Earliest Date Latest Date

Garganey 14/03/74 11/10/81

Whimbrel 30/03/97 05/10/79

Wood Sandpiper 14/02/54 17/10/87

Arctic Tern 02/04/88 31/10/87

Black Tern 06/04/60 28/10/72

Northern Wheatear 28/02/81 22/12/96

Summer Visitors Earliest Date Latest Date

Eurasian Hobby 09/04/85 17/10/78

Little Ringed Plover 10/03/83 20/11/63

Common Tern 05/04/96 20/11/87

Turtle Dove 24/03/57 19/10/69&83

Common Cuckoo 08/04/88 25/10/88

European Nightjar 05/05/87 27/09/83

Common Swift 18/04/70 29/10/76

Sand Martin 14/03/81 22/11/76

Barn Swallow 16/03/77 30/11/70

Northern House Martin 24/03/86 23/11/76

Tree Pipit 27/03/69 03/10/85

Yellow Wagtail 10/03/75&81 07/11/80&86

Rufous Nightingale 12/04/79 23/09/86

Common Redstart 05/04/69 24/10/86

Whinchat 15/04/84 28/10/79

Common Grasshopper Warbler 30/03/68 07/10/77

Sedge Warbler 23/03/58 08/11/65

Eurasian Reed Warbler 16/04/77 06/11/88

Lesser Whitethroat 12/04/81 21/10/86

Common Whitethroat 09/04/85 18/11/73

Garden Warbler 12/04/81 16/10/76

Wood Warbler 19/04/86 03/09/72

Willow Warbler 20/03/77 20/12/74

Spotted Flycatcher 20/04/71&76 05/10/82