Table 1.

Clutch size (CS), mortality from parasites (Mort), phytohaemaglutinin measures of immunocompetence of young (Yg) and adults (Ad), body mass (Mass), and characterization of southern (South) hemisphere and hole-nesting (Hole) of study species, and references (Ref) for each species

Species	CS	Mort	Yg	Ad	Mass	South	Hole	Ref
Delichon urbica	4.03	24.30	1.59	0.40	18.3	No	No	51
Ficedula hypoleuca	5.73	6.03	0.45	0.20	12.5	No	Yes	52*
H. albigularis	2.80		0.45	0.22	21.3	Yes	No	50
H. cucullata	2.97		1.41	0.40	27.1	Yes	No	50
H. daurica	4.50	12.50	0.94		19.1	No	No	50, 53
H. dimidiata	2.40		0.75	0.25	11.0	Yes	No	50
H. fuligula	2.80		1.32	0.30	22.4	Yes	No	50
H. rustica	4.67	7.94	1.24	0.50	18.9	No	No	50, 54
Luscinia svecica	5.80			0.43	18.3	No	No	55†
Merops apiaster	6.00		1.60		55.1	No	No	56‡
Oenanthe leucura	4.28	0	0.16	0.35	35.0	No	No	38
Panurus biarmicus	5.79			0.68	14.7	No	No	C‡
Parus major	8.85	14.90	0.77		14.4	No	Yes	37, 49
Passer domesticus	4.60			0.48	30.4	No	No	36
Passer montanus	4.95	30.00	2.41		23.5	No	Yes	57§
Petrochelidon pyrrhonota	3.41	41.60	2.78	0.34	21.6	No	No	50, 58, 59
Petrochelidon spilodera	2.40	34.00	1.97	0.28	20.6	Yes	No	50, 60
Pica pica	6.10		0.79		224.0	No	No	39
Riparia cincta	3.20		0.90	0.31	21.5	Yes	No	50
R. paludicola	2.90		0.93	0.40	13.1	Yes	No	50
R. riparia	5.16	21.00	0.99	0.51	13.5	No	No	50, 61
Serinus serinus	4.00		0.80		11.5	No	No	62
Sturnus vulgaris	5.10	8.04	1.00		79.7	No	Yes	63
Tachycineta bicolor	5.40	0	0.37	0.18	20.1	No	Yes	50
Turdus merula	4.04			1.28	95.9	No	No	64

^*J. Moreno, personal communication. 

^† J. Lifjeld, personal communication. 

^‡ H. Hoi, personal communication. 

^§ F. de Lope, personal communication.