| Chondestes grammacus (Say, 1822) | Unknown | 1991-12-11 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | |  available for loan |
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| Uraeginthus granatinus (Linnaeus, 1766) | Unknown | 2000-12-30 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Lonchura grandis (Sharpe, 1882) | Unknown | 1986-12-30 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Ardenna gravis (O'Reilly, 1818) | Greenland | 1996-09-26 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Sittasomus griseicapillus (Vieillot, 1818) | Brazil | 1991-09-11 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Sittasomus griseicapillus (Vieillot, 1818) | Brazil | 1991-09-20 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Sittasomus griseicapillus (Vieillot, 1818) | Brazil | 1993-09-25 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Sittasomus griseicapillus (Vieillot, 1818) | Brazil | 1994-04-27 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Sittasomus griseicapillus (Vieillot, 1818) | Brazil | 1994-04-28 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Sittasomus griseicapillus (Vieillot, 1818) | Brazil | 1994-05-05 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Dendropicos griseocephalus (Boddaert, 1783) | Tanzania, United Republic of | 1999-12-17 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Dendropicos griseocephalus (Boddaert, 1783) | Tanzania, United Republic of | 1991-08-20 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Asthenes griseomurina (P. L. Sclater, 1882) | Ecuador | 1987-06-18 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Asthenes griseomurina (P. L. Sclater, 1882) | Ecuador | 1987-06-18 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Passer griseus (Vieillot, 1817) | Unknown | 1992-01-25 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Passer griseus (Vieillot, 1817) | Unknown | 1991-09-04 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Oxypogon guerinii (Boissonneau, 1840) | Venezuela, Bolivarian Republic of | 1996-08-25 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Hemithraupis guira (Linnaeus, 1766) | Brazil | 1993-10-06 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Ptiloprora guisei (De Vis, 1894) | Papua New Guinea | 2015-09-30 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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| Ptiloprora guisei (De Vis, 1894) | Papua New Guinea | 2015-10-02 | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | NHMD, Copenhagen | tissue | blood | | available for loan |
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