Table 3.
Case no. | Species and signalment | Details of mortality incident | Body condition, [bodyweight (g)] and gross findings on post-mortem examination | ||
---|---|---|---|---|---|
Date and location | Species affected: no. birds found dead (no. seen sick) (and total no. affected individuals) | Clinical signs (if sick birds were observed) and/or perceived cause of death (reported by members of the public) | |||
1 |
Blue tit Adult |
Oct 2005 Wiltshire, England |
Blue tit 1 (0) | None reported |
Normal (11.1) Suspected hepatomegaly |
2 |
Dunnock Adult male |
Jan–Feb 2006 East Sussex, England |
Dunnock 2 (1) (2 individuals) | One individual was fluffed up prior to death |
Emaciated (17.4) Suspected splenomegaly |
3 |
Dunnock Adult |
Sep 2006–Jan 2007 Staffordshire, England |
Dunnock 1 (1) (1 individual) | Dunnock was fluffed up and lethargic prior to death |
Thin (17.0) Hepatomegaly. Necrotic ingluvitis |
Greenfinch 6 (some) | Some greenfinches were fluffed up and unable to fly | ||||
Chaffinch 14 (some) | None reported | ||||
House sparrow 2 (0) | None reported | ||||
4 |
Dunnock Adult female |
Feb 2007 Northamptonshire, England |
Dunnock 1 (0) | Suspected window strike |
Emaciated (13.4) Suspected splenomegaly |
5 |
Great tit Adult female |
Apr 2007 Wrexham, Wales |
Great tit 1 (0) | None reported |
Thin (14.1) Penetrating wound, rib fractures and fibrinous serositis |
6 |
Great tit Adult |
Sep–Oct 2007 East Sussex, England |
Great tit 1 (0) Greenfinch 0 (1) |
Great tit was predated by a cat Greenfinch was fluffed up and lethargic |
Normal (20.5) Splenomegaly. Pedunculated skin lesions on wing. Puncture wound |
7 |
Great tit Adult |
Jul–Sep 2007 Surrey, England |
Great tit 3 (3) (≥4 individuals) Blue tit 5 (0) |
Multiple individuals had skin growths, particularly on face and wing. Two of the dead great tits were euthanized |
Normal (17.6) Splenomegaly. Facial skin lesions. Hemorrhage (euthanasia) |
8 |
Great tit Adult male |
Jul–Oct 2007 East Sussex, England |
Great tit 2 (3) (3 individuals) | Two great tits were lethargic and one other was observed to have a skin growth on wing |
Normal (16.9) Splenomegaly. Suspected hepatomegaly. Fibrinous serositis. Hemorrhagic, inflamed neck lesion |
Dunnock 1 (1) (1 individual) | Dunnock was fluffed up before death | ||||
9 |
Dunnock Adult |
From the same mortality incident as Case 8 (see above) |
Emaciated (15.9) Hepatomegaly and splenomegaly |
||
10 |
Collared dove Adult female |
Sep 2008 Essex, England |
Collared dove 1 (1) (1 individual) | Found sick following cat predation and later died |
Emaciated (108.5) Serositis, air sacculitis and pericarditis. Ingluvitis. Hepatomegaly |
11 |
Dunnock Adult male |
Nov 2008–Jan 2009 Powys, Wales |
Dunnock 2 (2) (2 individuals) Robin 1 (1) (1 individual) |
Dunnocks and robin were fluffed up and lethargic before death |
Emaciated (15.7) Anorexia |
Greenfinch 0 (1) | None reported | ||||
12 |
Dunnock Adult male |
Feb 2009 West Sussex, England |
Blue tit 1 (0) | Blue tit was a possible window strike |
Thin (19.2) Fractures with no associated hemorrhage |
Dunnock 3 (0) | One dunnock was a possible window strike | ||||
Great tit 3 (0) | One great tit had avian pox (confirmed post-mortem) | ||||
Robin 2 (0) | None reported | ||||
Pheasant 1 (0) | None reported | ||||
13 |
Robin Nestling |
Apr 2009 Surrey, England |
Robin 3 (0) | All of a clutch of 3 nestlings found dead |
Thin (11.0) Hepatic congestion |
14 |
Blue tit Nestling |
May 2009 Staffordshire, England |
Blue tit 6 (0) | Six of a clutch of 7 nestlings died |
Thin (5.3) Suspected hepatomegaly. Anorexia |
15 |
Collared dove Juvenile |
Jun 2009 Tyne and Wear, England |
Collared dove 1 (1) (1 individual) | Fledgling, seen lethargic before death | Emaciated (104) |
Hepatomegaly, splenomegaly and serositis | |||||
16 |
Great tit Adult female |
Feb 2010 Wiltshire, England |
Great tit 1 (1) (1 individual) | Lethargic prior to death, with skin lesion on head |
Thin (15.5) Large skin lesion on head. Suspected splenomegaly |
17 |
Dunnock Adult male |
Mar 2010 Kent, England |
Dunnock 1 (1) (1 individual) | Dunnock was fluffed up and lethargic then predated by a cat |
Thin (17.0) Wound, fracture and hemorrhage. Splenomegaly and suspected hepatomegaly. Numerous intestinal helminths |
Blue tit 0 (1) | Blue tit was observed to be “sick” | ||||
18 |
Great tit Adult female |
Feb–Apr 2010 Surrey, England |
Great tit 1 (5) (5 individuals) | Multiple great tits had fleshy skin growths, one died |
Thin (13.7) Multiple skin lesions. Suspected splenomegaly. Numerous lice |
19 |
Dunnock Adult male |
Apr 2010 Hampshire, England |
Dunnock 1 (1) (1 individual) | Fluffed up and lethargic, euthanized |
Thin (17.0) Wounds, fractures and hemorrhage (euthanasia). Hepatomegaly and suspected splenomegaly |
20 |
Great tit Adult female |
Oct 2010 Surrey, England |
Great tit 1 (0) | Skin lumps, cat predation |
Normal (19.0) Multiple skin lesions. Fracture and hemorrhage. Splenomegaly |
21 |
Blue tit Adult male |
Mar–Apr 2011 Worcestershire, England |
Blue tit 6 (≥9) Great tit 0 (≥2) |
Sick blue tits and great tits were lethargic and some appeared to have dyspnea. Some appeared to have epiphora and/or blepharitis and/or blepharospasm. At least two sick blue tits were euthanized and some died |
Thin (8.16) Pulmonary congestion. Anorexia |