Table 2 Feather DNA concentration and PCR results from confirmed haemosporidian infected dead wild corvids in 2018 and 2019.

From: A non-invasive feather-based methodology for the detection of blood parasites (Haemosporida)

Bird ID

Species

Body weight (g)

Organ PCR

Covert feathers

Remiges and rectrices

Br

Li

DNA (ng/µl)

PCR result

DNA (ng/µl)

PCR result

C10

Eurasian magpie (Pica pica)

150

(−)

L

 < 4

nt

14.4

(−)

C37

Eurasian magpie (Pica pica)

151

L

L

 < 4

nt

74.4

(+) L

C13

Eurasian magpie (Pica pica)

156

H

H

 < 4

nt

24.9

(+) H

C6

Eurasian magpie (Pica pica)

164

(−)

L

 < 4

nt

17.1

(−)

C12

Eurasian magpie (Pica pica)

172

(−)

H, L

 < 4

nt

32.9

(+) H, L

C14

Eurasian magpie (Pica pica)

176

H

H, L

 < 4

nt

9.5

(−)

C35

Eurasian magpie (Pica pica)

177

L

L

 < 4

nt

12.1

(+) L

C33

Eurasian magpie (Pica pica)

180

L

L

 < 4

nt

8.7

(+) L

C31

Eurasian magpie (Pica pica)

186

L

L

 < 4

nt

41.5

(+) L

C5

Eurasian magpie (Pica pica)

187

(−)

L

 < 4

nt

6.4

(+) L

C20

Eurasian magpie (Pica pica)

188

L

L

5.1

(+)

21.3

(+) L

C11

Eurasian magpie (Pica pica)

190

H

H

 < 4

nt

52.8

(−)

C34

Eurasian magpie (Pica pica)

195

L

L

 < 4

nt

8.3

(+) L

C42

Carrion crow (Corvus corone)

427

(−)

L

 < 4

nt

15.6

(+) L

C45

Carrion crow (Corvus corone)

462

P

P

 < 4

nt

352*

(+) P

  1. Br: Brain; Li: Liver; P: Plasmodium spp.; H: Haemoproteus spp.; L: Leucocytozoon spp.; (−): negative PCR result; (+): positive PCR result; nt: Not tested.
  2. DNA concentration was too low for PCR testing.
  3. *The feather calamus contained abundant dried blood.